Multilingual dictionary of abbreviations

O

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Code

Meaning

Language

Themes and places

OSWA

Organizational Systems Wireless Auditor

In English

OT

Office de tourisme

In French

OT

Operación Triunfo

In Spanish

    OT

    Onafhankelijk Toneel

    In Dutch

    OT

    Occupational Therapy

    In English

    OT

    Ordo Teutonicus

    In Latin

    OT

    Organisation Todt

    In French

    OT
    Ohjelmistotekniikka

    = IT | Information Technology | In English
    = IT | Informationstechnik | In German
    = IT | Inligtingstegnologie | In Afrikaans
    = TI | Tecnologia da Informação | In Portuguese
    = TI | Tecnoloxías da información | In Galician
    = UT | Upplýsingatækni | In Icelandic
    = IT | Informationsteknik | In Swedish
    = IT | Informacijska Tehnologija | In Slovenian
    = IT | Informačné Technológie | In Slovak
    = ІТ | Інформаційні технології | In Ukrainian
    = ИТ | Информационные технологии | In Russian
    = IT | Informa Teknologio | In Esperanto
    = TI | Tecnologías de la Información | In Spanish
    = IT | Informacinės Technologijos | In Lithuanian
    = IT | Informācijas Tehnoloģijas | In Latvian

    In Finnish

    OT

    Ordre de Travail

    In French

    OT&E

    Operational Test and Evaluation

    In English

    OT/VT

    Otomatik Tanıma/Veri Toplama

    In Turkish

      OTA

      Operational Trajectory Analysis

      In English

      OTA

      Optical Telescope Assembly

      In English

      OTAN
      Organització del Tractat de l'Atlàntic Nord (www.nato.int)

      = NATO | North Atlantic Treaty Organisation | In English
      = OTAN | Organizazión d'o Tratau de l'Atlantico Norte | In Aragonese
      = OTAN | Organización del Tratáu del Atlánticu Norte | In Asturian
      = AFNA | Aozadur Feur-emglev Norzh-Atlantel | In Breton
      = OTAN | Organisation du Traité de l'Atlantique Nord | In French
      = ন্যাটো | উত্তর আটলান্টিক নিরাপত্তা জোট | In Bengali
      = NATO | Οργανισμός Βορειοατλαντικού Συμφώνου | In Greek
      = NATO | Nordatlantikvertrag-Organisation | In German
      = OTAN | Organización del Tratado del Atlántico Norte | In Spanish
      = NATO | Nord-Atlantika Traktat-Organizo | In Esperanto
      = NAFO | Noard-Atlantyske Ferdrachsorganisaasje | In Frisian
      = OTAN | Organización do Tratado do Atlántico Norte | In Galician
      = ნატო | ჩრდილოატლანტიკური თანამშრომლობის ორგანიზაცია | In Georgian
      = OTAN | Organização do Tratado do Atlântico Norte | In Portuguese
      = OTNA | Organizaciya le Tratatosko le Nordutne Atlantikosko | In Romani
      = OTAN | Organizaţia Tratatului Atlanticului de Nord | In Romanian
      = NATO | Organisatschoon vun den Noordatlantikverdrag | In Low German
      = NAVO | Noord-Atlantische Verdragsorganisatie | In Dutch

      In Catalan

      OTAN
      Organizazión d'o Tratau de l'Atlantico Norte (www.nato.int)

      = NATO, AFNA, ন্যাটো, NAFO, ნატო, OTNA, NAVO (see above)

      In Aragonese

      OTAN
      Organización del Tratáu del Atlánticu Norte (www.nato.int)

      = NATO, AFNA, ন্যাটো, NAFO, ნატო, OTNA, NAVO (see above)

      In Asturian

      OTAN
      Organisation du Traité de l'Atlantique Nord (www.nato.int)

      = NATO, AFNA, ন্যাটো, NAFO, ნატო, OTNA, NAVO (see above)

      In French

      OTAN
      Organización del Tratado del Atlántico Norte (www.nato.int)

      = NATO, AFNA, ন্যাটো, NAFO, ნატო, OTNA, NAVO (see above)

      In Spanish

      OTAN
      Organización do Tratado do Atlántico Norte (www.nato.int)

      = NATO, AFNA, ন্যাটো, NAFO, ნატო, OTNA, NAVO (see above)

      In Galician

      OTAN
      Organização do Tratado do Atlântico Norte (www.nato.int)

      = NATO, AFNA, ন্যাটো, NAFO, ნატო, OTNA, NAVO (see above)

      In Portuguese

      OTAN
      Organizaţia Tratatului Atlanticului de Nord (www.nato.int)

      = NATO, AFNA, ন্যাটো, NAFO, ნატო, OTNA, NAVO (see above)

      In Romanian

      OTB

      Orbiting Tanker Base

      In English

      OTC

      Optical Test Chamber

      In English

      OTC
      Orbiter Test Conductor

      The abbreviation OTC (Orbiter Test Conductor) includes the abbreviation TC (Test Conductor).

      In English

      OTC

      Over the Counter

      In English

      OTD

      Operational Technical Documentation

      In English

      OTD

      Orbiter Test Director

      In English

      OTDA

      Office of Tracking And Data Acquisition

      In English

      OTE

      Optical Test and Evaluation

      In English

      OTE

      Orbital Transfer Equipment

      In English

      OTEA

      United States Army Operational Test and Evaluation Agency

      In English

      OTEC

      Operational Test and Evaluation Center

      In English

      OTEC

      Ocean Thermal Energy Conversion

      In English

      OTF

      Operational Time Fraction

      In English

        OTF

        Optical Transfer Function

        In English

        OTFE

        Oscillatory Thermocapillary Flow Experiment

        In English

          OTHB

          Over-The-Horizon Backscatter

          In English

            OTI
            Ordre de Transfert Interne

            The abbreviation OTI (Ordre de Transfert Interne) includes the abbreviation TI (Transfert Interne).

            In French

            OTJC

            Ordre du Temple de la Jérusalem Céleste

            In French

            OTK

            Oxidizer Tank

            In English

            OTL

            Office of Technology Licensing

            In English

            OTL

            Online Tamil Lexicon

            In English

            OTL

            OSI (Open Systems Interconnection) Testing Liaison

            In English

            OTL

            Ordnance Test Laboratory

            In English

            OTLC

            Orbiter Time Line Constraint

            In English

            OTM

            Output Transformation Matrix

            In English

              OTN
              Objet Transneptunien

              = TNO | Trans-Neptunian Object | In English
              = TNO | Transneptunisches Objekt | In German
              = TNO | Transneptuna Objekto | In Esperanto
              = TNO | Transneptunsk Objekt | In Norwegian
              = ТНО | Транснепту́новый объе́кт | In Russian
              = NÖC | Neptün Ötesi Cisim | In Turkish

              In French

              OTNA
              Organizaciya le Tratatosko le Nordutne Atlantikosko (www.nato.int)

              = OTAN, NATO, AFNA, ন্যাটো, NAFO, ნატო, NAVO (see above)

              In Romani

              OTNE
              Objet Transneptunien Extrême

              = ETNO | Extreme Trans-Neptunian Object | In English

              In French

              OTOS

              Orbit-To-Orbit Stage

              In English

              OTP

              Omega Translation Process

              In English

                OTP

                Országos Takarékpénztár

                In Hungarian

                OTP
                Operational Test Procedure

                The abbreviation OTP (Operational Test Procedure) includes the abbreviation TP (Test Procedure).

                In English

                OTP

                Operations Turnaround Plan

                In English

                OTP

                The Old Testament Pseudepigrapha

                In English

                OTP
                Outline Test Plan

                The abbreviation OTP (Outline Test Plan) includes the abbreviation TP (Test Plan).

                In English

                OTP
                Organigramme Technique de Projet
                Un Organigramme Technique de Projet (OTP) est une représentation hiérarchique du travail à effectuer au cours d’un projet. Par sa structure arborescente (arbre), un OTP organise les phases, les activités, les tâches, les lots de travaux ou les livrables attendus, en les subdivisant jusqu’à atteindre le degré de détail nécessaire à la réalisation du projet.

                In French

                OTP

                One-Time Password

                In English

                OTPP

                Ontario Teachers’ Pension Plan

                In English

                OTPS

                Other Than Personal Services

                In English

                  OTR

                  Operating Time Record

                  In English

                  OTS

                  Originaltext-Service

                  In German

                  OTS

                  Orbital Test System

                  In English

                  OTS

                  Orbital/Orbital Transfer System

                  In English

                  OTS

                  Ordre du Temple Solaire

                  In French

                  OTT

                  Optional Team Targeting

                  In English

                  OTT

                  Onvoltooid Tegenwoordige Tijd

                  In Dutch

                  OTV
                  Operational Television

                  The abbreviation OTV (Operational Television) includes the abbreviation TV (Television).

                  In English

                  OTV

                  Orbit Test Vehicle

                  In English

                  OTV

                  Orbital Transfer Vehicle

                  In English

                  OUA

                  Organisation de l'Unité Africaine

                  In French

                  OUG

                  Ordonanţă de Urgenţă a Guvernului

                  In Romanian

                  OUI

                  Office of Urban Initiatives

                  In English

                    OULIPO

                    OUvroir de LIttérature POtentielle

                    In French

                    OUN
                    Organisation del Unit Nationes (https://www.un.org/)

                    = UN | Unuiĝintaj Nacioj | In Esperanto
                    = ONU | Organisation des Nations Unies | In French
                    = ONU | Organizazión d'as Nazions Unitas | In Aragonese
                    = ААН | Арганіза́цыя Аб'ядна́ных На́цый | In Belarusian
                    = VN | Verenigde Nasies | In Afrikaans
                    = ONU | Organización de les Naciones Uníes | In Asturian
                    = OOH | Организацията на обединените нации | In Bulgarian
                    = ABU | Aozadur ar Broadoù Unanet | In Breton
                    = OSN | Organizace Spojených Národů | In Czech
                    = ПНО | Пĕрлешнĕ Нацисен Организацийĕ | In Chuvash
                    = ՄԱԿ | Միավորված Ազգերի Կազմակերպություն | In Armenian
                    = FN | Feriene Naasjes | In Frisian
                    = UN | United Nations | In English
                    = NBE | Nazio Batuen Erakundea | In Basque
                    = ONU | Organizacion de las Nacions Unidas | In Occitan
                    = UN | Unuiĝinta Naciaro | In Esperanto
                    = UN | Ujedinjeni Narodi | In Bosnian
                    = CN | Consociatio Nationum | In Latin
                    = FN | Forenede Nationer | In Danish
                    = UN | Unionita Nacioni | In Ido
                    = ONU | Organizzazione delle Nazioni Unite | In Italian
                    = KU | Kenedhlow Unys | In Cornish
                    = ONU | Organització de les Nacions Unides | In Catalan
                    = ΟΗΕ | Οργανισμός Ηνωμένων Εθνών | In Greek
                    = ΗΕ | Ηνωμένα Έθνη | In Greek
                    = ONU | Organización de las Naciones Unidas | In Spanish
                    = VN | Vereinte Nationen | In German
                    = VN | Verenigde Naties | In Dutch
                    = VN | Vereent Natiounen | In Letzeburgesh
                    = ООН | Организация Oбъединённых Hаций | In Russian
                    = ONU | Organisacion des Nacions Unies | In Franco-Provençal
                    = ONZ | Organizacja Narodów Zjednoczonych | In Polish
                    = BMT | Birlashgan Millatlar Tashkiloti | In Uzbek
                    = ООН | Організація Об'єднаних Націй | In Ukrainian
                    = BM | Birleşmiş Milletler | In Turkish
                    = LHiQ | Liên Hiệp Quốc | In Vietnamese
                    = OKB | Organizata e Kombeve të Bashkuara | In Albanian
                    = OSN | Organizácia Spojených národov | In Slovak
                    = OZN | Organizacija Združenih Narodov | In Slovenian
                    = УН | Уједињене нације | In Serbian
                    = FN | Förenta nationerna | In Swedish
                    = UM | Umoja wa Mataifa | In Swahili
                    = NU | Nazzioni Uniti | In Sicilian
                    = ONU | Organizaţia Naţiunilor Unite | In Romanian
                    = ONU | Organização das Nações Unidas | In Portuguese
                    = VN | Vereenten Natschonen | In Low German
                    = ST | Sameindu Tjóðir | In Faroese
                    = HN | Huñusqa Nasyunkuna | In Quechuan languages
                    = PBB | Pertubuhan Bangsa-bangsa Bersatu | In Malay
                    = NA | Na Náisiúin Aontaithe | In Irish
                    = NY | Neteweyên Yekbûyî | In Kurdish
                    = ÜRO | Ühinenud Rahvaste Organisatsioon | In Estonian
                    = SÞ | Sameinuðu þjóðanna | In Icelandic
                    = ЕМрО | Еидгылоу Амилаҭқәа Рорганизациа | In Abkhazian
                    = ДЛО | Дунэе Лъэпкъ Организацие | In Adyghe
                    = የተ.መ.ድ. | የተባበሩት መንግሥታት ድርጅት | In Amharic
                    = ЦМГІ | Цолъарал Миллатазул ГІуцІи | In Avar
                    = BMT | Birləşmiş Millətlər Təşkilatı | In Azerbaijani
                    = VN | Vaoantn Nationa | In Austro-Bavarian
                    = JTO | Jongtėniu Tautū Uorganėzacėjė | In Samogitian
                    = БМО | Берләшкән Милләттәр Ойошмаһы | In Bashkir
                    = НҮБ | Нэгэдэһэн Үндэһэтэнэй Байгуулга | BXR
                    = BM | Birleşken Milletler | In Crimean Tatar
                    = CU | Cenhedloedd Unedig | In Welsh
                    = ONU | Organización las Nacionis Unías | In Extremaduran
                    = އ.ދ | އެކުވެރި ދައުލަތްތައް | In Dhivehi
                    = ÜRO | Ütistünüisi Rahvidõ Organisatsiuun | In Võro
                    = ÜR | Ütistünüq Rahvaq | In Võro
                    = YK | Yhdistyneet kansakunnat | In Finnish
                    = ONU | Organizazion des Nazions Unidis | In Friulian
                    = ONI | Organizasyon di sé Nasyonzini | In French Guianese Creole
                    = ONU | Organización das Nacións Unidas | In Galician
                    = AU | Ny h-Ashoonyn Unnaneysit | In Manx
                    = UN | United Nations | In Fiji Hindi
                    = UN | Ujedinjeni narodi | In Croatian
                    = ENSZ | Egyesült Nemzetek Szervezete | In Hungarian
                    = ՄԱԿ | Միաւորուած Ազգերու Կազմակերպութիւն | In Western Armenian
                    = ONU | Organisation del Nationes Unite | In Interlingua
                    = PBB | Perserikatan Bangsa-Bangsa | In Indonesian
                    = PBB | Pasarékatan Bangsa-Bangsa | In Javanese
                    = BMSh | Birlesken Milletler Shólkemi | In Karakalpak
                    = გაერო | გაერთიანებული ერების ორგანიზაცია | In Georgian
                    = ЛъЗ | Лъэпкъ Зэгуэтхэр | In Kabardian
                    = БМО | Бирлешген Миллетлени Организациясы | In Karachay-Balkar
                    = ӦВК | Ӧтувтчӧм Войтыръяслӧн Котыр | In Komi
                    = БУУ | Бириккен Улуттар Уюму | In Kirghiz
                    = СМТ | Садхьанвай миллетрин тешкилат | LEZ
                    = NU | Nasiones Unida | In Lingua Franca Nova
                    = VN | Verenigde Naties | In Limburgish
                    = ÜNU | Urganizaziun di Naziun Ünii | In Lombard
                    = LIBIMO | Lisangá lya Bikólo bya Mokili mobimba | In Lingala
                    = LBM | Lisangá lya Bikólo bya Molɔ́ngɔ́ | In Lingala
                    = JTO | Jungtinių Tautų Organizacija | In Lithuanian
                    = ANO | Apvienoto Nāciju Organizācija | In Latvian
                    = PBB | Pasarékatan Bangsa-Bangsa | In Bilma Kanuri
                    = FM | Firenena Mikambana | MLG
                    = ИНО | Иктыш ушнышо Наций-влак Организаций | MHR
                    = PBB | Pasarikatan Banso-Banso | MIN
                    = ООН | Организација на обединетите нации | In Macedonian
                    = НҮБ | Нэгдсэн Үндэстний Байгууллага | In Mongolian
                    = संरा | संयुक्त राष्ट्रे | In Marathi
                    = SN | Dei sameinte nasjonane | In Nynorsk
                    = FN | De forente nasjoner | In Norwegian
                    = ߡ.ߟ.ߛ | ߡߊ߲߬ߕߏ߲ ߘߍ߬ߣߍ߲ ߛߌ߲߬ߝߏ߲߬ߧߊ߬ߟߌ | NQO
                    = ONE | Organisatioun des Natiouns Eunies | In Norman
                    = ИНО | Иугонд Нациты Организаци | In Ossetian
                    = HA | Huñusqa Aylluskakuna | In Quechuan languages
                    = ONU | Organisassion dle Nassion Unìe | In Piedmontese
                    = ONU | Organisaziun da las Naziuns unidas | In Romansh
                    = ОЗН | Орґанізація Зъєдиненых Націй | In Rusyn
                    = ХНТ | Холбоһуктаах Нациялар Тэрилтэлэрэ | In Yakut
                    = UNO | Unitit Naitions Organisation | In Scots
                    = UN | Unitit Naitions | In Scots
                    = ON | Ovttastuvvan Našuvnnat | In Northern Sami
                    = MNP | Mubatanidzwa weNyika Pasirose | In Shona
                    = QM | Qaramada Midoobay | In Somali
                    = OKB | Organizata e Kombeve të Bashkuara | In Albanian
                    = PBB | Perserikatan Bangsa-Bangsa | In Sundanese
                    = СММ | Созмони Милали Муттаҳид | In Tajik
                    = BMG | Birleşen Milletler Guramasy | In Turkmen
                    = БМО | Берләшкән Милләтләр Оешмасы | In Tatar
                    = ОНО | Огазеяськем Нациослэн Организацизы | In Udmurt
                    = ONU | Organixasion dełe Nasion Unìe | In Venetian
                    = ÜRO | Ühtenzoittud Rahvahiden Organizacii | In Veps
                    = ÜRK | Ühthižrahvazkundad | In Veps
                    = ÜN | Ühtištetad Nacijad | In Veps
                    = NNP | Nogan Netas Pebalöl | In Volapük
                    = ONU | Organizåcion des Nåcions Uneyes | In Walloon
                    = KMX | Kureelu Mbootayu Xeet yi | In Wolof
                    = AOA | Àgbájọ àwọn Orílẹ̀-èdè Aṣòkan | In Yoruba

                    In Interlingue

                    OUNID
                    Organizo de la Unuiĝintaj Nacioj por Industria Disvolvado (https://www.unido.org/)

                    = UNIDO | United Nations Industrial Development Organization | In English

                    In Esperanto

                    OUP

                    Oxford University Press (https://global.oup.com/)

                    In English

                    OUPP

                    Office for University Preparatory Programs

                    In English

                    OUT

                    Orbiter Utility Tray

                    In English

                    OV

                    Order Voucher

                    In English

                      OV

                      Orbital Vehicle

                      In English

                      OV

                      Orbiter Vehicle

                      In English

                      OV

                      Oxygen Vent

                      In English

                      OV

                      Openbaar Vervoer

                      In Dutch

                        OVA

                        Organisme Vérificateur Agréé

                        In French

                        OVA

                        Open Virtualization Alliance

                        In English

                        OVAL

                        Open Vulnerability and Assessment Language

                        In English

                        OVB

                        Organisatie ter Verbetering van de Binnenvisserij

                        In Dutch

                        OVC
                        Ommense Voetbal Club

                        The abbreviation OVC (Ommense Voetbal Club) includes the abbreviation VC (Voetbal Club).

                        In Dutch

                        OVC
                        Oijense Voetbal Club

                        The abbreviation OVC (Oijense Voetbal Club) includes the abbreviation VC (Voetbal Club).

                        In Dutch

                        OVC
                        Oosterbeekse Voetbal Club

                        The abbreviation OVC (Oosterbeekse Voetbal Club) includes the abbreviation VC (Voetbal Club).

                        In Dutch

                        OVCAD

                        OVarian CAncer Diagnosis

                        In English

                        OVCO

                        Operational Voice Communication Office

                        In English

                        OVCS
                        Ophovense Voetbal Club Sittard

                        The abbreviation OVCS (Ophovense Voetbal Club Sittard) includes the abbreviation VC (Voetbal Club).

                        In Dutch

                        OVDS

                        Oxidizer Vent Drain System

                        In English

                          OVEI
                          Orbiter Vehicle End Item

                          The abbreviation OVEI (Orbiter Vehicle End Item) includes the abbreviation EI (End Item).

                          In English

                          OVH

                          Ontspannings Vereniging Hercules

                          In Dutch

                          OVH

                          Oles Van Herman

                          In many languages

                          OVH

                          On Vous Héberge ?

                          In French

                          OVI

                          Optical Variable Ink

                          In English

                            OVI

                            Operational Validation Inspection

                            In English

                            OVL

                            ONGC (Oil and Natural Gas Corporation) Videsh Limited (www.ongcvidesh.com)

                            In English

                            OVM

                            Oudervereniging voor de Moraal

                            In Dutch

                            OVNI

                            Objectes Voladors No Identificats

                            In Catalan

                              OVNI
                              Objet Volant Non Identifié

                              = OVNI | Objecte Volador No Identificat | In Catalan
                              = НЛО | Неидентифициран летящ обект | In Bulgarian
                              = OVNI | Objeto Volador No Identificado | In Spanish
                              = UFO | Unidentifiziertes Flugobjekt | In German
                              = UFO | Unidentified Flying Object | In English
                              = UFO | Unknown Flying Object | In English
                              = UFO | Uidentificeret flyvende objekt | In Danish
                              = NIFO | Neidentigita Fluganta Objekto | In Esperanto
                              = UFO | Unbekend fleanend objekt | In Frisian
                              = עב"מ | עצם בלתי מזוהה | In Hebrew
                              = OVNI | Oggetto Volante Non Identificato | In Italian
                              = NLO | Neidentificēts lidojošs objekts | In Latvian
                              = UFO | Uidentifisert flygende objekt | In Norwegian
                              = UFO | Uidentifisert flygande objekt | In Nynorsk
                              = NOL | Niezidentyfikowany Obiekt Latający | In Polish
                              = OVNI | Objeto Voador Não Identificado | In Portuguese
                              = OZN | Obiect Zburător Neidentificat | In Romanian
                              = НЛО | Неопознанный летающий объект | In Russian
                              = NLO | Neidentifikovani leteći objekat | In Serbo-Croatian

                              In French

                              OVNI
                              Objecte Volador No Identificat

                              = НЛО, UFO, NIFO, עב"מ, NLO, NOL, OZN (see above)

                              In Catalan

                              OVNI
                              Objeto Volador No Identificado

                              = НЛО, UFO, NIFO, עב"מ, NLO, NOL, OZN (see above)

                              In Spanish

                              OVNI
                              Oggetto Volante Non Identificato

                              = НЛО, UFO, NIFO, עב"מ, NLO, NOL, OZN (see above)

                              In Italian

                              OVNI
                              Objeto Voador Não Identificado

                              = НЛО, UFO, NIFO, עב"מ, NLO, NOL, OZN (see above)

                              In Portuguese

                              OVPR

                              Office of the Vice President for Research

                              In English

                              OVR

                              Opération Villages Roumains

                              In French

                              OVS

                              Observation of Variable Stars

                              In English

                              OVT

                              Onvoltooid Verleden Tijd

                              In Dutch

                              OVV

                              Oostvoornse Voetbal Vereniging

                              In Dutch

                              OVV

                              Oosteinder Voetbal Vereniging

                              In Dutch

                              OVV

                              Onder Vermelding Van

                              In Dutch

                                OVV

                                Overlegcentrum van Vlaamse Verenigingen

                                In Dutch

                                OVVO

                                Op Volharding Volgt Overwinning

                                In Dutch

                                OW

                                Optical Window

                                In English

                                OWASP

                                Open Web Application Security Project (www.owasp.org)

                                In English

                                OWD

                                One-Way Doppler

                                In English

                                OWDE

                                One-Way Doppler Extraction

                                In English

                                OWF

                                Optimum Working Frequency

                                In English

                                OWIOS

                                Over Winnen Is Ons Streven

                                In Dutch

                                OWL

                                Web Ontology Language

                                In English

                                OWL

                                Ostwestfalen-Darts-Liga

                                In German

                                OWL

                                Object Windows Library

                                In English

                                OWL-D

                                Ontology Web Language Description Logics

                                In English

                                OWL-S

                                Web Ontology Language for Web Services

                                In English

                                OWP
                                Organizacja Wyzwolenia Palestyny

                                = PLO | Palestine Liberation Organization | In English
                                = FAT | Fələstin Azadlıq Təşkilatı | In Azerbaijani
                                = ООП | Организация за освобождение на Палестина | In Bulgarian
                                = OAP | Organització per a l'Alliberament de Palestina | In Catalan
                                = OOP | Organizace pro osvobození Palestiny | In Czech
                                = OLP | Organización para la Liberación de Palestina | In Spanish
                                = OLP | Organisation de Libération de la Palestine | In French
                                = PAE | Palestinaren Askapenerako Erakundea | In Basque
                                = OLP | Organizaĵo por Liberigo de Palestino | In Esperanto
                                = OLP | Organización para a Liberación da Palestina | In Galician
                                = PLO | 팔레스타인 해방기구 | In Korean
                                = OLP | Organização para a Libertação da Palestina | In Portuguese
                                = PLO | パレスチナ解放機構 | In Japanese
                                = ПЛО | Палестинската ослободителна организација | In Macedonian
                                = PIO | Palestinos išsivadavimo organizacija | In Lithuanian
                                = პგო | პალესტინის განთავისუფლების ორგანიზაცია | In Georgian
                                = OLP | Organizzazione per la Liberazione della Palestina | In Italian
                                = ООП | Организация освобождения Палестины | In Russian
                                = ПЛО | Палестинска ослободилачка организација | In Serbian
                                = PLO | 巴勒斯坦解放組織 | In Chinese languages
                                = OВП | Організація визволення Палестини | In Ukrainian
                                = FKÖ | Filistin Kurtuluş Örgütü | In Turkish

                                In Polish

                                OWSE

                                OSSTMM Wireless Security Expert

                                In English

                                OWTRAD

                                Old World Traditional Trade Routes (Project)

                                In English

                                OXCs

                                Optical cross connects

                                In English

                                OYCF

                                Overseas Young Chinese Forum

                                In English

                                OZC

                                ODIS Zorgvlied Combinatie

                                In Dutch

                                OZC

                                Ommer Zaterdag Club

                                In Dutch

                                OZK

                                Oranje Zwart Kromhout

                                In Dutch

                                OZN
                                Obiect Zburător Neidentificat

                                = OVNI, НЛО, UFO, NIFO, עב"מ, NLO, NOL, OZN (see above)

                                In Romanian

                                OZN
                                Organizacija Združenih Narodov (https://www.un.org/)

                                = OUN, ONU, ААН, VN, OOH, ABU, OSN, ПНО, ՄԱԿ, FN, NBE, CN, KU, ΟΗΕ, ООН, ONZ, BMT, LHiQ, OKB, УН, UM, ST, HN, PBB, NA, NY, ÜRO, SÞ, ЕМрО, ДЛО, የተ.መ.ድ., ЦМГІ, JTO, БМО, НҮБ, CU, އ.ދ, YK, ONI, AU, ENSZ, BMSh, გაერო, ЛъЗ, ӦВК, БУУ, СМТ, ÜNU, LIBIMO, LBM, ANO, FM, ИНО, संरा, ߡ.ߟ.ߛ, ONE, HA, ОЗН, ХНТ, UNO, MNP, QM, СММ, BMG, ОНО, ÜRK, NNP, KMX, AOA (see above)

                                In Slovenian

                                OZO

                                Oranje Zal Overwinnen

                                In Dutch

                                  OZOD

                                  Overwinnen Zij Ons Doel

                                  In Dutch

                                  OZW

                                  Oud Zwart Wit

                                  In Dutch

                                  OcDyn

                                  Ocean Dynamics

                                  In English

                                  OcEng

                                  Ocean Engineering

                                  In English

                                  OcMod

                                  Ocean Modelling

                                  In English

                                  OcPhE

                                  Ocean Physics and Engineering

                                  In English

                                  OcSci

                                  Ocean Science

                                  In English

                                  OeAV

                                  Österreichischer Alpenverein (www.alpenverein.at)

                                  In German

                                  OeGHO

                                  Österreichische Gesellschaft für Hämatologie und medizinische Onkologie (https://www.oegho.at/)

                                  In German

                                  OeM

                                  Österreichische Mediathek (www.mediathek.ac.at)

                                  In German

                                  Ofta

                                  Observatoire Français des Techniques Avancées

                                  In French

                                  OkSEJT

                                  Okcidenta Somera Junulara Tendaro

                                  In Esperanto

                                    OklRe

                                    University of Oklahoma Observatory Reprints

                                    In English

                                    OntoUCP

                                    Ontology based Unified Communication Protocol

                                    In English

                                    OntoUCP

                                    Ontology-based Unified Communication Protocol

                                    In English

                                    OpSCN

                                    Optical Sciences Center Newsletter

                                    In English

                                    OptCo

                                    Optics Communications

                                    In English

                                    OptEn

                                    Optical Engineering

                                    In English

                                    OptFT

                                    Optical Fiber Technology

                                    In English

                                    OptL

                                    Optics Letters

                                    In English

                                    OptLE

                                    Optics and Lasers in Engineering

                                    In English

                                    OptLT

                                    Optics Laser Technology

                                    In English

                                    OptMa

                                    Optical Materials

                                    In English

                                    OptN

                                    Optics News

                                    In English

                                    OptPE

                                    Optical Physics and Engineering

                                    In English

                                    OptPN

                                    Optics & Photonics News

                                    In English

                                    OptQE

                                    Optical Quantum Electronics

                                    In English

                                    OptRv

                                    Optical Review

                                    In English

                                    OptSp

                                    Optics and Spectroscopy

                                    In English

                                    OrBAC

                                    Organisation-Based Access Control

                                    In English

                                    OrGeo

                                    Organic Geochemistry

                                    In English

                                    OrLi

                                    Origins of Life

                                    In English

                                    OrNav

                                    Ortung und Navigation

                                    In German

                                    OsCar

                                    Osteoarthritis and Cartilage

                                    In English

                                    OxM

                                    Oxidation of Metals

                                    In English

                                    OxfOO

                                    Oxford University Observatory Observations

                                    In English

                                    OzSE

                                    Ozone: Science and Engineering

                                    In English

                                    Oberösterreich

                                    In German

                                    OÖGKK

                                    Oberösterreichische Gebietskrankenkassa (www.ooegkk.at)

                                    In German

                                    OВП
                                    Організація визволення Палестини

                                    = OWP, PLO, FAT, ООП, OAP, OOP, OLP, PAE, ПЛО, PIO, პგო, FKÖ (see above)

                                    In Ukrainian

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