All articles starting with O
9,097 articles
Ordinary Decent Criminal
Ordinary Decent Criminal is a 2000 crime comedy directed by Thaddeus O'Sullivan, starring Kevin Spacey as Dublin gangster Michael Lynch, loosely based on Martin Cahill; a critical and box office failure released straight to video in the US.
Ordinary differential equation
An ordinary differential equation (ODE) is an equation involving an unknown function of one variable and its derivatives, used to model motion, circuits, chemical reactions, and populations.
Ordinary generating function
An ordinary generating function (OGF) encodes a sequence as a power series whose coefficients are the sequence's terms, distinguishing it from weighted variants such as exponential generating functions.
Ordinary Greatness (警察荣誉)
Ordinary Greatness (警察荣誉) is a 2022 38-episode Chinese police drama directed by Ding Hei and written by Zhao Dongling, following four rookie officers at the fictional Balihe station; it premiered 28 May 2022 on CCTV-8 and iQIYI and reached a Douban score of 8.6. A different 2015 border-police drama shares the name.
Ordinary Hero (平凡英雄)
Ordinary Hero (平凡英雄, also 中国英雄) is a 2022 Chinese drama directed by Tony Chan, starring Li Bingbing and Feng Shaofeng, adapted from the 2021 Hotan broken-arm boy rescue aboard China Southern flight CZ6820, released 30 September 2022, grossing about 222 million yuan.
Ordinary Joe
Ordinary Joe is an NBC drama series starring James Wolk as Joe Kimbreau, shown in three parallel timelines as a musician, a nurse, and a police officer.
Ordinary language philosophy
Ordinary language philosophy, a linguistic philosophy also called Oxford philosophy, treats everyday word use as philosophy's proper method, dissolving problems that misuses of language create.
Ordinary least squares
Ordinary least squares (OLS) regression is the standard estimator of the linear regression model, choosing coefficients that minimize the sum of squared residuals, described as the workhorse of applied econometrics.
Ordinary Man (Ozzy Osbourne album)
Ordinary Man is Ozzy Osbourne's 12th solo album (21 February 2020, Epic), his first since Scream (2010), produced by Andrew Watt with Chad Smith, Duff McKagan, and guests Elton John, Post Malone, Travis Scott; peaked at number 3 on the Billboard 200, Metascore 78.
Ordinary Men: The "Forgotten Holocaust"
Ordinary Men: The "Forgotten Holocaust" (Ganz normale Männer) is a German ZDF documentary by Manfred Oldenburg on Reserve Police Battalion 101, based on Christopher Browning's book, released on Netflix in 2023 with Brian Cox narrating.
Ordinary People
Ordinary People (1980) is Robert Redford's directorial debut drama, adapted from Judith Guest's novel, about the grieving Jarrett family; it won four Oscars including Best Picture and made 20-year-old Timothy Hutton the youngest Supporting Actor winner.
Ordinary seaman
An ordinary seaman is the entry-level, unlicensed deck rating on a merchant ship, ranking below able seaman, performing maintenance, cleaning, and helm and lookout watches under supervision.
Ordinary Time
Ordinary Time (Latin: Tempus per annum) is the longest season of the Roman Catholic liturgical year, 33 or 34 weeks outside Advent, Christmas, Lent, and Easter, with green vestments.
Ordinary World (film)
Ordinary World is a 2016 American comedy-drama, also titled Geezer at Tribeca, directed by Lee Kirk and starring Green Day's Billie Joe Armstrong as former punk rocker Perry; released October 14, 2016, 53% on Rotten Tomatoes.
Ordination
Ordination is the rite by which a religious body authorizes someone to exercise a leadership office, most familiarly Christian ordination of bishops, priests, and deacons.
Ordination certificates (dupu)
Ordination certificates (度牒) were official documents, issued from the Tang onward, without which no ordination was valid; under the Song the government sold them for cash.
Ordination of women
The ordination of women is the formal admission of women to ordained ministry, practiced by most Protestants, Anglicans, and Reform Judaism but rejected by Catholics and Orthodox.
Ordine degli Ingegneri
The Ordine degli Ingegneri (Order of Engineers) is the Italian professional order for engineers, a network of 106 provincial bodies that maintains the register of engineers and controls access to the profession.
Ordnance QF 17-pounder
The Ordnance QF 17-pounder was a British 76.2 mm anti-tank gun of the Second World War, named for its 17-pound projectile and mounted in Sherman Firefly tanks.
Ordnance QF 18-pounder
The Ordnance QF 18-pounder was the standard quick-firing field gun of British and Commonwealth artillery in the First World War, with more than 10,000 guns produced from 1904.
Ordnance QF 25-pounder
The Ordnance QF 25-pounder, or 25-pdr, was a British quick-firing 87.6 mm gun-howitzer that served as the standard field gun of British and Commonwealth forces during the Second World War.
Ordnance QF 6-pounder
The Ordnance QF 6-pounder was a British 57 mm anti-tank gun of the Second World War that entered service in 1942 and first saw action in North Africa.
Ordnance Survey
Ordnance Survey (OS), Great Britain's national mapping agency founded 21 June 1791 by the Board of Ordnance, maintains over 600 million geospatial features, the National Grid, and OSGB36 mapping data.
Ordnance Survey National Grid
The Ordnance Survey National Grid, also called British National Grid (BNG), is the coordinate reference system used on all Ordnance Survey maps of Great Britain.
Ordnungspolizei
Ordnungspolizei (Orpo), Nazi Germany's uniformed police created in 1936 under Kurt Daluege within Himmler's police empire; its battalions massacred Jews at Bialystok and Babi Yar and guarded over 700 deportation transports.
Ordo
Ordo, also ordu or orda, was the mobile camp-court and headquarters of a steppe ruler, the origin of the word "horde" and the name Golden Horde.
Ordo amoris
Ordo amoris, or ordo caritatis, is a Christian moral theology principle from Augustine holding that love is good when its objects are loved in right order.
Ordo Templi Orientis
Ordo Templi Orientis (O.T.O.), or Order of Oriental Templars, is a Thelemic religious organization begun around 1902 and led by Aleister Crowley from the 1920s, known for its Gnostic Mass.
Ordoliberalism
Ordoliberalism is a German school of economic thought founded at the University of Freiburg in the 1930s by Walter Eucken, Franz Böhm, and Hans Großmann-Doerth.
Ordos
Ordos is a permanent FIA Grade 2 motor racing circuit in Ordos, Inner Mongolia, China, opened in 2010 and laid out in the shape of a running horse.