127,669 articles
Covenanters
The Covenanters, also called Scottish Covenanters, were Scottish Presbyterians who swore the National Covenant of 1638 and Solemn League of 1643, defending presbyterian government against royal control.
Coventry Blitz
Coventry Blitz: Operation Moonlight Sonata, the Luftwaffe's concentrated raid on Coventry, England, on 14–15 November 1940; about 500 bombers destroyed St Michael's Cathedral, killed 554–568 people, and inspired the German word coventrieren.
Coventry University
Coventry University, also known as Coventry Polytechnic before 1992, is a public university in Coventry, England, founded as the Coventry School of Design in 1843. Known for TEF Gold teaching, over 30,000 students, and a multi-campus group including London, Scarborough, and Wrocław.
Cover (intelligence gathering)
Cover in intelligence gathering is the false identity an officer adopts abroad: official (diplomatic, with immunity) versus nonofficial cover (NOC), which trades legal protection for access to targets diplomats cannot reach.
Cover Genius
Cover Genius is an insurtech company founded in Sydney in 2014 and headquartered in New York, whose XCover platform embeds insurance at checkout for partners like Uber, Booking.com, and Klarna.
Cover letter
A cover letter, also called a covering or application letter, is a one-page letter sent with a résumé to introduce a job application and link skills to the role.
Covera Health
Covera Health is a New York-based health-data company founded in 2017 by Ron Vianu whose AI platform scores diagnostic quality across more than 1,100 imaging sites.
Covered call
A covered call, also known as a buy-write, is an options strategy of selling call options against stock you own on a share-for-share basis to collect premium income.
CoverManager
CoverManager is a Spanish hospitality software company founded in Seville in 2015 by José Antonio Pérez Moral and Carlos Pérez Fernández, selling booking and payments software for restaurants.
Covers.com
Covers.com, founded 1995 and part of Genius Sports (NYSE: GENI), is a free sports betting information site offering live odds, matchup data, consensus picks, sportsbook reviews, contests, and a large betting forum.
Covert incest
Covert incest, or emotional incest, is a non-diagnostic term coined by Kenneth Adams in the 1980s for a parent using a child as a surrogate emotional partner, without physical sexual contact; related to parentification and enmeshment.
Covert operation
Covert operation: a government activity to influence political, economic, or military conditions abroad while concealing the sponsor's role, defined in 50 U.S.C. §3093; distinct from clandestine activity, authorized by presidential findings, overseen by congressional intelligence committees since the Hughes-Ryan Amendment of 1974.
Coverture
Coverture, which made a married woman a feme covert, was the common-law doctrine under which a wife's legal identity merged into her husband's, barring independent property and contracts.
Covestor
Covestor was a Boston- and London-based online investing marketplace where retail investors could automatically mirror the verified real brokerage trades of self-investors; it was acquired by Interactive Brokers in 2015.
Covestro
Covestro AG is a German polymer producer headquartered in Leverkusen that makes polyurethane and polycarbonate precursors; it was spun off from Bayer in 2015 and acquired by ADNOC in 2025.
Covfefe
Covfefe: nonsense word from Donald Trump's May 31, 2017 midnight tweet "Despite the constant negative press covfefe," widely read as a typo for "coverage"; deleted after six hours, 2.6 million mentions, lasting meme and political shorthand.
COVID-19 pandemic in Mongolia
The COVID-19 pandemic in Mongolia began with its first imported case on 10 March 2020; after four major waves in 2021, it recorded 953,695 cases and 2,118 deaths.
COVID-19 recession
The COVID-19 recession, also known as the coronavirus recession or coronacession, was the two-month US contraction from February to April 2020, the shortest on record yet the deepest postwar downturn, with unemployment peaking at 14.7%.
Covina massacre
Covina massacre, also called the Covina Christmas massacre: a mass murder on Christmas Eve 2008 in Covina, California, by Bruce Jeffrey Pardo, 45, in a Santa suit, who shot and burned nine of his former in-laws before killing himself.
Covington Catholic High School
Covington Catholic High School (CovCath) is an all-male Catholic college-preparatory high school in Park Hills, Kentucky, founded in 1925, with 521 students, five curriculum levels, 32 state athletic titles, and the 2019 Lincoln Memorial incident.
Cow tipping
Cow tipping, the supposed prank of pushing over sleeping cows, is an urban legend: cows sleep lying down, and physics (2,910 N, about 4.43 pushers) makes tipping a standing cow impractical.
COWAROBOT (酷哇机器人)
COWAROBOT (酷哇机器人), legally Anhui Kuwa Robot Co., Ltd., is a Chinese autonomous-driving and urban-robotics company founded in 2015, with over 10,000 robots deployed in more than 50 cities.
Cowboy Ventures
Cowboy Ventures is a Palo Alto, California seed-stage venture capital firm founded in 2012 by Aileen Lee, whose analysis is credited with coining the term "unicorn."
Coworking
Coworking is a membership-based model of shared workspace in which independent workers and companies rent desks or offices by the hour, day, or month alongside other tenants.
Cowrie currency
Cowrie currency (貝幣) was the use of marine cowrie shells as money in early China, peaking under the Shang and Western Zhou and abolished by Qin law.
Cox Enterprises
Cox Enterprises is a privately held, family-owned American conglomerate founded by James M. Cox in 1898, headquartered in Atlanta, Georgia, with about $23 billion in revenue and divisions including Cox Automotive and the Atlanta Journal-Constitution.
Coy Wire
Coy Wire, born 1978, is a CNN sports anchor and correspondent since 2015 and a former NFL safety/linebacker; Stanford player drafted 97th overall by Buffalo in 2002, later Atlanta Falcons.
Coya
Coya, also spelled qoya (Quechua quya), was the title of the queen of the Inca Empire, the legitimate and principal wife of the emperor, the Sapa Inca.
Coyote (mythology)
Coyote (Sek'lep, Nk̓yáp) is the trickster, culture hero, and sometimes creator of Indigenous North American mythology, widespread from the Plains and Great Basin to California and the Southwest, credited with stealing fire, arranging the stars, and introducing death.
Coyote Bioscience
Coyote Bioscience (北京卡尤迪生物) is a Beijing-based in vitro diagnostics company founded in 2009 by Li Xiang, best known for its FlashDetect rapid PCR systems, whose Flash20 analyzer was approved in July 2020 for COVID-19 mass screening.