Abbreviations related to the theme ‘Knowledge, information and institutions’
Science and knowledge, organization, computer science, information, documentation, librarianship, institutions, publications.
- Code
-
Meaning
Language
Themes and places
- OP&R
-
Operations Planning and Requirements
- OPA
-
Online Publishers Association (www.online-publishers.org)
- OPA
-
Operations Planning Analysis
- OPA
-
Ontario Psychological Association (https://www.psych.on.ca/)
- OPAC
-
Online Public Access Catalog
- OPAH
-
Opération Programmée d’Amélioration de l’Habitat
- OPALE
-
Outil de Pilotage et d'Aide à L'Expertise
- OPALE
-
Outil Probabiliste des ALimentations Électriques
- OPAM
-
Opera di Promozione dell'Alfabetizzazione nel Mondo
- OPAS
-
Organização Pan-Americana da Saúde (www.paho.org)
OPAS is equivalent to OPS (Organización Panamericana de la Salud) in Spanish, PAHO (Pan American Health Organization) in English.
- OPC
-
Open Process Control
- OPC
-
Organisation pour la Prévention de la Cécité (www.opc.asso.fr)
- OPC
-
Observatoire des Politiques Culturelles (www.observatoire-culture.net)
- OPC
-
Opel Performance Center
- OPC
-
OLE for Process Control
- OPC
-
Organic Photoconductor
- OPDQ
-
Ordre Professionnel des Diététistes du Québec
- OPEC
-
Organization of the Petroleum Exporting Countries
OPEC is equivalent to OPEP (Organisation des Pays Exportateurs de Pétrole) in French, OPEL (Organizaĵo de Petrol-Eksportaj Landoj) in Esperanto, OPEP (Organização dos Países Exportadores de Petróleo) in Portuguese, OPEP (Organización de Países Esportadores de Petroleu) in Asturian, OPEP (Organización de Países Exportadores de Petróleo) in Spanish, OPEP (Organització de Països Exportadors de Petroli) in Catalan, ОПЕК (Организација на земји извознички на нафта и нафтени деривати) in Macedonian.
- OPECST
-
Office Parlementaire d'Évaluation des Choix Scientifiques et Technologiques
- OPEIU
-
Office and Professional Employees International Union
- OPEL
-
Organizaĵo de Petrol-Eksportaj Landoj
OPEL is equivalent to OPEC, OPEP, ОПЕК (see above).
- OPEN
-
Organisation de Producteurs d'Énergie Nucléaire
- OPEP
-
Organisation des Pays Exportateurs de Pétrole
OPEP is equivalent to OPEC, OPEL, ОПЕК (see above).
- OPEP
-
Organização dos Países Exportadores de Petróleo
OPEP is equivalent to OPEC, OPEL, ОПЕК (see above).
- OPEP
-
Organización de Países Esportadores de Petroleu
OPEP is equivalent to OPEC, OPEL, ОПЕК (see above).
- OPEP
-
Organización de Países Exportadores de Petróleo
OPEP is equivalent to OPEC, OPEL, ОПЕК (see above).
- OPEP
-
Organització de Països Exportadors de Petroli
OPEP is equivalent to OPEC, OPEL, ОПЕК (see above).
- OPERA
-
Observatoire PErmanent de la RAdioactivité
- OPESH
-
Observatoire de la Pauvreté et de l’Exclusion Sociale en Haïti
- OPEX
-
OPération EXtérieure
- OPG
-
Objectif Projet Groupe
- OPGC
-
Observatoire de Physique du Globe de Clermont-Ferrand (wwwobs.univ-bpclermont.fr)
- OPI
-
Objectif Projet Individuel
- OPI
-
Operations Procedure Instruction
- OPI
-
Ośrodek Przetwarzania Informacji (www.opi.org.pl)
- OPID
-
Observatório da Profissão de Informação-Documentação
- OPIDF
-
Operational Planning Identification File
- OPIPA
-
Organisatie voor Natuurwetenschappelijk Onderzoek
- OPL
-
Orbiter Project Parts List
- OPL
-
Open Proxy List
- OPM
-
Operations Procedure Manual
- OPM
-
Office of Personnel Management
- OPML
-
Outline Processor Markup Language
- OPO
-
Orbiter Project Office
The abbreviation OPO (Orbiter Project Office) includes the abbreviation PO (Project Office).
- OPP
-
Organizacje Pożytku Publicznego (http://opp.ms.gov.pl)
- OPPBTP
-
Organisme Professionnel de Prévention du Bâtiment et des Travaux Publics (https://www.oppbtp.com/)
- OPPF
-
Oxford Protein Production Facility
- OPPS
-
Operations Planning and Project Support
- OPPTIC
-
Organisation de Professionnels pour la Promotion des TIC en région Languedoc-Roussillon
- OPQCM
-
Office Professionnel de Qualification des Conseils en Management
- OPR
-
Office of Primary Responsibility
- OPR
-
Operations Planning Review
- OPR
-
Observatoire du Patrimoine Religieux
- OPRI
-
Office de Protection contre les Rayonnements Ionisants (www.opri.fr)
- OPS
-
Operational Sequence
- OPS
-
Orbiter Project Schedule
- OPS
-
Organización Panamericana de la Salud (www.paho.org)
OPS is equivalent to OPAS, PAHO (see above).
- OPSA
-
OSSTMM Professional Security Analyst
- OPSDB
-
Operations Data Base
The abbreviation OPSDB (Operations Data Base) is included in the abbreviation OPSDBA (Operations Data Base Administrator), and it includes the abbreviation DB (Data Base).
- OPSDBA
-
Operations Data Base Administrator
The abbreviation OPSDBA (Operations Data Base Administrator) includes abbreviations DB (Data Base) and OPSDB (Operations Data Base).
- OPSE
-
OSSTMM Professional Security Expert
- OPSIS
-
Observation et Prospective sur la Société de l’Information et ses Services
- OPST
-
OSSTMM Professional Security Tester
- OPTILE
-
Organisation Professionnelle des Transports d'Île-de-France
- OPWC
-
Organisation for the Prohibition of Chemical Weapons (www.opcw.org)
OPWC is equivalent to OIAC (Organisation pour l'Interdiction des Armes Chimiques) in French.
- OQE
-
Optical and Quantum Electronics
- OQL
-
Object Query Language
- OQLF
-
Office Québécois de la Langue Française (https://www.oqlf.gouv.qc.ca/)
- OR
-
Organisme de Rattachement
- ORA
-
Operational Requirements Analysis
- ORA
-
Organisation Révolutionnaire Anarchiste
- ORAM
-
Output Random Access Memory
The abbreviation ORAM (Output Random Access Memory) includes the abbreviation RAM (Random Access Memory).
- ORAP
-
Organisation Associative du Parallélisme
- ORB
-
Object Request Broker
- ORB
-
Operations Review Board
The abbreviation ORB (Operations Review Board) includes the abbreviation RB (Review Board).
- ORCADE
-
Outil de Reporting, de Consolidation et d'Aide à la DÉcision
- ORCHIDEE
-
ORdonnancement des CHaînes Informatiques Dirigées par les Événements et les Enchaînements
- ORCHIS
-
Oak Ridge Computerized Hierarchical Information System
- ORD
-
Operational Readiness Data
- ORD
-
Operational Ready Data
- ORD
-
Operations Requirements Document
The abbreviation ORD (Operations Requirements Document) includes the abbreviation RD (Requirements Document).
- ORD
-
Orbital Requirements Document
The abbreviation ORD (Orbital Requirements Document) includes the abbreviation RD (Requirements Document).
- ORDBMS
-
Object-Relational Database Management System
- ORDI
-
Ontology Representation and Data Integration
- OREF
-
Observatoire Régional de l'Emploi et de la Formation
- ORF
-
Observer Research Foundation
- ORFEUS
-
Observatories and Research Facilities for EUropean Seismology (http://orfeus.knmi.nl)
- ORGUE
-
Outils de Réorganisation de la Gestion Unifiée des Entités
- ORI
-
Operational Readiness Inspection
- ORI
-
Ocean Research Institute (www.ori.u-tokyo.ac.jp)
- ORIC
-
ORganisation Informatique Comptable
- ORIENT
-
Oriental Research Infrastructure to European Networks
- ORIS
-
Office of Research and Information Systems
- ORLA
-
Optimum Repair Level Analysis
The abbreviation ORLA (Optimum Repair Level Analysis) includes the abbreviation RLA (Repair Level Analysis).
- ORM
-
Observatoire Régional des Métiers
- ORMP
-
Office Rwandais des Marchés Publics
- ORP
-
OFS Retransmission Processor
- ORP
-
Optional Retirement Program
- ORPHEM
-
Organisation Régionale des Pharmaciens Hospitaliers de l’Est Méditerranéen
- ORR
-
Operational Readiness Review
The abbreviation ORR (Operational Readiness Review) includes the abbreviation RR (Readiness Review).
- ORR
-
Operations Requirements Review
The abbreviation ORR (Operations Requirements Review) is included in the abbreviation PORR (Preliminary Operations Requirements Review), and it includes the abbreviation RR (Requirements Review).
- ORRCA
-
Ontario Research Centre for Computer Algebra (www.orcca.on.ca)
- ORROE
-
Occasional Reports of the Royal Observatory Edinburgh
- ORSDI
-
Oak Ridge Selective Dissemination of Information
- ORT
-
Operational Readiness Test
- ORT
-
Orbit Readiness Test
- ORT
-
Opération de Revitalisation du Territoire
- ORTA
-
Organisme de Ràdio i Televisió d'Andorra
- ORTAS
-
Organisme de la Radio-Télévision Arabe Syrienne
- ORU
-
Orbital Replaceable Unit
- ORU
-
Orbital Replacement Unit
- ORU
-
Opération de Rénovation Urbaine
- OS
-
Orientalia Suecana
- OS
-
Operating Software
- OS
-
Operating System
The abbreviation OS (Operating System) is included in abbreviations such as FMA (Finanzmarktaufsicht), BOS (Backup Operating System), COS (Console Operating System), EOS (Extended Operating System), FCOS (Flight Computer Operating System), FCOS (Flight Control Operating System), MS-DOS (Microsoft Disk Operating System), GCOS (Ground Computer Operating System), HOS (Hybrid Operating System), IDOS (Integrated Display Operating System), MSDOS (Mass Storage Digital Operating System), OSID (Operating System Interface Definition), POSIX (Portable Operating System Interface), DOS (Disk Operating System), RDOS (Real-Time Disk Operating System), SCOS (Subsystem Computer Operating System), TOS (Test Operating System), ECOS (Experiment Computer Operating System), QDOS (Quick and Dirty Operating System), MOS (Machine Operating System), PC-DOS (Personal Computer Disk Operating System), TOS (Tape Operating System), RTOS (Real-Time Operating System), CNOS (Communication Network Operating System), BDOS (Basic Disk Operating System), ROSS/V (RSTS/E Operating System Simulator for VAX), WOS (Web Operating System), BOS (Base Operating System), DTOS (Distributed Trusted Operating System), DROPS (Dresden Real-Time Operating System Project), COS (Cray Operating System) and FOS (Factored Operating System).
- OS
-
Operazione Sviluppo
- OS
-
Open Source
The abbreviation OS (Open Source) is included in abbreviations such as OSI (Open Source Initiative), OSDL (Open Source Development Labs), OSDL (Open Source Development Lab), FLOSS (Free/Libre Open Source Software), OSIM (Open Source In Morocco), GOSCON (Government Open Source Conference), OSSTMM (Open Source Security Testing Methodology Manual), OSEM (Open Source Event Manager) and OSS (Open Source Software).
- OS3B
-
Open Software Blanc Bleu Belge
- OSA
-
Oklahoma Sociological Association
- OSA
-
Operational Support Area
The abbreviation OSA (Operational Support Area) includes the abbreviation SA (Support Area).
- OSA
-
Ordo Sancti Augustini
- OSAJ
-
Optical Society of America Journal
- OSAJI
-
Optical Society of America Journal - Optics and Image Science
- OSALL
-
Organisation of South African Law Libraries
- OSART
-
Operational Safety Assessment Review Team
- OSB
-
Oberste Schifffahrtsbehörde
- OSB
-
Ordo Sancti Benedicti
- OSBL
-
Organisme Sans But Lucratif
- OSBL
-
Online Stochastic Batch Learning
- OSC
-
Orbital Sciences Corporation
- OSC
-
Ookmeer Schinkelhaven Combinatie
- OSC
-
Olstse Sport Club
- OSC
-
Oosterhoutse Sport Club
- OSC
-
Orthense Sport Club
- OSCAR
-
Outils de Services, Conseils et Assistance Rapide
- OSCAR
-
Open Super-large Crawled ALMAnaCH coRpus
- OSCF
-
Operations Support Computing Facility
- OSCI
-
Organisation des Opérateurs Spécialisés du Commerce International
- OSCIP
-
Organização da Sociedade Civil de Interesse Público
- OSCN
-
Orbiter Specification Change Notice
The abbreviation OSCN (Orbiter Specification Change Notice) includes abbreviations CN (Change Notice) and SCN (Specification Change Notice).
- OSCR
-
Orbiter Software Change Request
The abbreviation OSCR (Orbiter Software Change Request) includes abbreviations CR (Change Request), SC (Software Change) and SCR (Software Change Request).
- OSCRS
-
Orbital Spacecraft Consumables Resupply System
- OSD
-
Open Source Definition
- OSD
-
Object Storage Device
- OSDH
-
Orbiter System Definition Handbook
- OSDL
-
Open Source Development Labs
The abbreviation OSDL (Open Source Development Labs) includes the abbreviation OS (Open Source).
OSDL is equivalent to OSDL (Open Source Development Lab) in English.
- OSDL
-
Open Source Development Lab
The abbreviation OSDL (Open Source Development Lab) includes the abbreviation OS (Open Source).
OSDL is equivalent to OSDL (see above).
- OSDO
-
Ons Samenspel Doet Overwinnen
- OSE
-
Open System Environment
- OSE
-
Oeuvre de Secours aux Enfants
- OSEM
-
Open Source Event Manager
The abbreviation OSEM (Open Source Event Manager) includes the abbreviation OS (Open Source).
- OSERA
-
Ohio Scientific Education & Research Association
- OSF
-
Open Software Foundation
- OSGi
-
Open Services Gateway initiative (www.osgi.org)
- OSHA
-
Occupational Safety and Health Administration (https://www.osha.gov/)
- OSI
-
Open Source Initiative (https://opensource.org/)
The abbreviation OSI (Open Source Initiative) includes the abbreviation OS (Open Source).
- OSI
-
Ordnance Survey Ireland
- OSI
-
Österreichisches Ost- und Südosteuropa-Institut (www.osi.ac.at)
- OSI
-
Onze Sport Inspireert
- OSID
-
Operating System Interface Definition
The abbreviation OSID (Operating System Interface Definition) includes the abbreviation OS (Operating System).
- OSID
-
Open Systems and Information Dynamics
- OSIEK
-
Organiza Societo de Internaciaj Esperanto-Konferencoj
- OSIM
-
Open Source In Morocco
The abbreviation OSIM (Open Source In Morocco) includes the abbreviation OS (Open Source).
- OSIRIS
-
Outil de Synthèse Informatique des Résultats et Indicateurs Standardisés
- OSIRIS
-
Organisation et Système Informatisé de Rangement des Informations Stratégiques
- OSIRIS
-
Observatoire des Systèmes d’Informations, des Réseaux et des Inforoutes au Sénégal (www.osiris.sn)
- OSJaJ
-
Oceanographical Society of Japan Journal
- OSM
-
On-Orbit Spares Model
- OSM
-
Operational Status Monitoring
- OSM
-
Obiettivi di Sviluppo del Millennio
OSM is equivalent to OMD (Objectifs du Millénaire pour le Développement) in French, MDG (Millennium Development Goals) in German, TPM (Tujuan Pembangunan Milenium) in Indonesian, ODM (Objetivos de Desarrollo del Milenio) in Spanish, MDM (Metas de Desenvolvimento do Milênio) in Portuguese.
- OSM
-
Omni Sportvereniging Maarssenbroek
- OSMP
-
Operational Support Maintenance Plan
- OSN
-
Organizace Spojených Národů (https://www.un.org/)
OSN is equivalent to 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, 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) in the BXR language, 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, OUN (Organisation del Unit Nationes) in Interlingue, 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) in the LEZ language, 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) in the MLG language, ИНО (Иктыш ушнышо Наций-влак Организаций) in the MHR language, PBB (Pasarikatan Banso-Banso) in the MIN language, 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) in the NQO language, 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.
- OSN
-
Organizácia Spojených národov (https://www.un.org/)
OSN is equivalent to UN, ONU, ААН, VN, OOH, ABU, ПНО, ՄԱԿ, FN, NBE, CN, KU, ΟΗΕ, ООН, ONZ, BMT, LHiQ, OKB, OZN, 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, OUN, 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).
- OSO
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Omroep Sport Organisatie
- OSOP
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Orbiter Systems Operating Procedure
The abbreviation OSOP (Orbiter Systems Operating Procedure) includes the abbreviation OP (Operating Procedure).
- OSPF
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Open Shortest Path First
- OSPG
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Österreichisch-Südpazifische Gesellschaft (www.univie.ac.at/ospg/)
- OSR
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Oberster Sanitätsrat
- OSR
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Operations Support Room
- OSRBD
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Operational Software Reliability Benchmark Development
- OSS
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Oefening Staalt Spieren
- OSS
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Open Source Software
The abbreviation OSS (Open Source Software) includes the abbreviation OS (Open Source).
- OSSA
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Oxfordshire School Sports Association
- OSSE
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Observing System Simulation Experiment
- OSSRH
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Orbiter Subsystem Requirements Handbook
- OSSTMM
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Open Source Security Testing Methodology Manual
The abbreviation OSSTMM (Open Source Security Testing Methodology Manual) includes the abbreviation OS (Open Source).
- OSTC
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Open Systems Testing Consortium
- OSTDS
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Office of Space Tracking and Data Systems
- OSTF
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Off-Site Test Facility
The abbreviation OSTF (Off-Site Test Facility) includes the abbreviation TF (Test Facility).
- OSTP
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Office of Science and Technology Policy
- OSTP
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Orbiting System Test Plan
The abbreviation OSTP (Orbiting System Test Plan) includes the abbreviation TP (Test Plan).
- OSV
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Oostzaanse Sport Vereniging
- OSV
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Overdinkelse Sport Vereniging
- OSVIC
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Organismo Sardo di Volontariato Internazionale Cristiano
- OSWA
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Organizational Systems Wireless Auditor
- OT
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Ordo Teutonicus
- OT
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Ohjelmistotekniikka
OT is equivalent to 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.
- OT&E
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Operational Test and Evaluation
- OTC
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Orbiter Test Conductor
The abbreviation OTC (Orbiter Test Conductor) includes the abbreviation TC (Test Conductor).