All articles starting with O
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Official gazettes of Asian, Middle Eastern and African states
The official gazettes of Asian, Middle Eastern, and African states are government periodicals publishing laws and notices, including the Gazette of India and Thailand's Royal Gazette.
Official Irish Republican Army
Official IRA (OIRA), the republican paramilitary organisation left after the 1969 IRA split that created the Provisional IRA; declared a 1972 ceasefire, moved through Official Sinn Féin and the Workers' Party, and decommissioned its weapons in February 2010.
Official Journal of the European Patent Office
The Official Journal of the European Patent Office, known as the OJ EPO, is the EPO's official gazette, published monthly since 1978 in English, French, and German.
Official Journal of the European Union
The Official Journal of the European Union, formerly the Official Journal of the European Communities, is the gazette whose publication makes EU law legally binding.
Official language
Official language: legally designated language of government, legislation, and courts in states and organizations such as India (Hindi), Canada (English, French), the EU (24), the UN (six), South Africa (11), and Switzerland.
Official languages of the United Nations
The six official languages of the United Nations are Arabic, Chinese, English, French, Russian, and Spanish, set by 1946 resolution 2(I) and completed when Arabic joined in 1973; English and French remain the Secretariat's working languages.
Official Marvel Index
Official Marvel Index: Marvel Comics' issue-by-issue reference series (1985, 1987, 1994, 2009 runs), adapted from George Olshevsky's unofficial Marvel Comics Index, indexing Avengers, X-Men, Spider-Man and more.
Official Monster Raving Loony Party
The Official Monster Raving Loony Party (OMRLP) is a satirical British political party founded in 1982 by Screaming Lord Sutch, known for absurd policies and costumed candidates.
Official portraits of Donald Trump
Official portraits of Donald Trump: the 2017 Shealah Craighead photograph, the 2025 Daniel Torok portraits (revised June 2, 2025), GPO distribution, the unshown Ronald Sherr Smithsonian painting, and the Melania Trump portrait.
Official Rank Statute of the Jin
The Official Rank Statute of the Jin (晋官品令) was a Jin dynasty statute whose official grade scale shaped land rights, schooling, and office-holding until the Tang.
Official residence
Official residence: state-provided dwelling for heads of state, heads of government, ministers or diplomats, used for security and official duties. Examples include 10 Downing Street, Buckingham Palace, 24 Sussex Drive, The Lodge, and diplomatic residences abroad.
Official Secrets (film)
Official Secrets is a 2019 political thriller directed by Gavin Hood, starring Keira Knightley as GCHQ whistleblower Katharine Gun, who leaked an NSA memo about blackmailing UN Security Council members over the 2003 Iraq invasion; Sundance premiere, IFC Films release.
Official Secrets Act
Official Secrets Act: collective name for UK statutes, the 1911, 1920, and 1939 espionage Acts and the Official Secrets Act 1989 on unauthorised disclosure; distinguished from foreign copies such as Malaysia's 1972 Act.
Official state car
An official state car is a government-provided vehicle for a head of state or head of government, ranging from leased limousines to bespoke armored cars.
Official World Golf Ranking
Official World Golf Ranking (OWGR), weekly men's professional golf ranking launched April 6, 1986 as the Sony Ranking with Bernhard Langer first No.1; ranks players by average points over 104 weeks, with majors worth 100 points and LIV Golf restricted to top-10 points from 2026.
Officina
Officina was an Italian literary and cultural journal published bimonthly in Bologna from 1955 to 1959, founded by Francesco Leonetti, Pier Paolo Pasolini, and Roberto Roversi.
Officina Profumo-Farmaceutica di Santa Maria Novella
Officina Profumo-Farmaceutica di Santa Maria Novella is a Florentine perfumery and former pharmacy founded by Dominican friars in 1221, now a luxury fragrance brand majority-owned by Italmobiliare.
Offline Love (オフライン ラブ)
Offline Love (オフライン ラブ) is a 2025 Japanese Netflix reality dating series in which ten singles spend ten days in Nice, France, without digital devices, relying on letters and chance; commented by Kyoko Koizumi and Reiwa Roman.
Offline programming
Offline programming (OLP) is a technique for programming industrial robots on a separate computer, using a 3D simulation of the robot cell so the robot never leaves production, in contrast to teach pendant programming.
Offline reinforcement learning
Offline reinforcement learning, also called batch reinforcement learning, learns decision-making policies from fixed, pre-collected datasets with no environment interaction during training, with applications in healthcare, robotics, and LLM post-training.
Offline Ventures
Offline Ventures is a pre-seed and seed venture capital firm and in-house incubator in Mill Valley, California, founded in 2020 by Dave Morin, Brit Morin, Nate Bosshard, and James Higa.
OfflineTV
OfflineTV, usually shortened to OTV, is a Los Angeles-based collective of content creators and streamers founded in 2017 by Scarra, Chris Chan, and Pokimane, known for collaborative gaming and variety videos.
Offred (The Handmaid's Tale episode)
"Offred" is the series premiere (season 1, episode 1) of Hulu's The Handmaid's Tale, aired April 26, 2017. Written by Bruce Miller, directed by Reed Morano, it introduces June/Offred (Elisabeth Moss) in Gilead and ends by revealing her real name.
Offset (rapper)
Offset, the stage name of Kiari Kendrell Cephus, is an American rapper from Lawrenceville, Georgia, a member of the Atlanta trap trio Migos and a solo artist since 2019.
Offset agreements
Offset agreements are contracts in which a defense exporter gives the purchasing country industrial benefits, like co-production or technology transfer, as a condition of the arms sale.
Offset printing
Offset printing, also known as offset lithography, is the most common commercial printing method, transferring ink from a plate to a rubber blanket and then to paper.
Offset tracking
Offset tracking, also called pixel-offset tracking, is a synthetic aperture radar technique that measures surface displacement, used for glacier flow and large earthquake deformation where InSAR fails.
Offshore aquaculture
Offshore aquaculture, also called exposed or open-ocean farming, raises fish, shellfish, and seaweed in high-energy sites beyond sheltered nearshore waters; defined by exposure, depth over 50 m, waves of 5 m or more, and engineering challenges of cage integrity, mooring, and fish welfare.
Offshore bank
An offshore bank, also called offshore banking, is a bank in a jurisdiction serving non-resident clients, under the licensing jurisdiction's rules rather than the customer's residence.
Offshore company
Offshore company: a legal entity incorporated in a foreign, typically low-tax jurisdiction such as the BVI or Cayman Islands for holding, financing, and cross-border structuring; subject to CRS, FATCA, and beneficial ownership rules at home.