cohort

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co·hort

 (kō′hôrt′)
n.
1.
a. A group or band of people.
b. A companion or associate.
c. A generational group as defined in demographics, statistics, or market research: "The cohort of people aged 30 to 39 ... were more conservative" (American Demographics).
2.
a. One of the 10 divisions of a Roman legion, consisting of 300 to 600 men.
b. A group of soldiers.

[Middle English, from Old French cohorte, from Latin cohors, cohort-; see gher- in Indo-European roots.]
Usage Note: The English word cohort comes from the Latin word cohors, which meant "an enclosed area" or "a pen or courtyard enclosing a group of cattle or poultry." By extension, the word could refer to any group in general and in particular to a company of soldiers or a troop of cavalry in the army of ancient Rome. The group of men forming the bodyguard of a Roman general or the retinue of a provincial governor was also called a cohors. Because of this history, some people insist that the English word cohort should be used to refer only to a group of people and never to an individual person. But the use of cohort in reference to individuals has become so common, especially in the plural, as to overshadow the use in the singular to refer to a group. Both in our 1988 and 1999 surveys, 71 percent of the Usage Panel accepted the sentence The cashiered dictator and his cohorts have all written their memoirs. These results stand in stark contrast to those of our 1965 survey, in which 69 percent rejected the usage. Moreover, the Panel is divided regarding the traditional usage referring to a group. In 1988, 43 percent accepted The gangster walked into the room surrounded by his cohort, and in 1999, 56 percent accepted Like many in her cohort, she was never interested in kids when she was young.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

cohort

(ˈkəʊhɔːt)
n
1. (Military) one of the ten units of between 300 and 600 men in an ancient Roman Legion
2. any band of warriors or associates: the cohorts of Satan.
3. chiefly US an associate or follower
4. (Biology) biology a taxonomic group that is a subdivision of a subclass (usually of mammals) or subfamily (of plants)
5. (Statistics) statistics a group of people with a statistic in common, esp having been born in the same year
[C15: from Latin cohors yard, company of soldiers; related to hortus garden]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

co•hort

(ˈkoʊ hɔrt)

n.
1. a companion, associate, or accomplice.
2. a group or company.
3. one of the ten divisions of a Roman legion.
4. any group of soldiers or warriors.
5. a group of persons sharing a particular statistical or demographic characteristic.
6. an individual in a population of the same species.
[1475–85; < Middle French cohorte < Latin cohort-, s. of cohors farmyard, armed force]
usage: Emphasizing the idea of companionship or aid, cohort has come to signify a single individual - whether friend, supporter, or accomplice. This use is sometimes objected to, although it is now common.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

Cohort

 a division in the Roman army; a band of warriors. See also band, company.
Examples: cohort of acquaintances, 1719; of bright cherubim, 1667; of Christian fathers, 1858; of infantry, 1489; of priests, 1874; of social regenerators, 1871; of warriors, 1500.
Dictionary of Collective Nouns and Group Terms. Copyright 2008 The Gale Group, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.cohort - a company of companions or supporters
company - a social gathering of guests or companions; "the house was filled with company when I arrived"
2.cohort - a band of warriors (originally a unit of a Roman Legion)
band, circle, lot, set - an unofficial association of people or groups; "the smart set goes there"; "they were an angry lot"
3.cohort - a group of people having approximately the same agecohort - a group of people having approximately the same age
people - (plural) any group of human beings (men or women or children) collectively; "old people"; "there were at least 200 people in the audience"
aged, elderly - people who are old collectively; "special arrangements were available for the aged"
youth, young - young people collectively; "rock music appeals to the young"; "youth everywhere rises in revolt"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.

cohort

noun
1. (Chiefly U.S.) supporter, partner, associate, mate, assistant, follower, comrade, protagonist, accomplice, sidekick (slang), henchman Drake and his cohorts were not pleased at my promotion.
2. group, set, band, contingent, batch We now have results for the first cohort of pupils to be assessed.
Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002

cohort

noun
1. One who is united in a relationship with another:
2. One who supports and adheres to another:
The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Translations
مَجْموعَه، كَتيبَه
kohortaskupina
skare
flokkur, hópur; áhangendahópur
būrysgauja
cilvēku grupakohorta

cohort

[ˈkəʊhɔːt] Ncohorte f
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

cohort

[ˈkəʊhɔːrt] n
(= group) → groupe m
(= supporter) → acolyte m
Collins English/French Electronic Resource. © HarperCollins Publishers 2005

cohort

nKohorte f, → Trupp m
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

cohort

[ˈkəʊhɔːt] n (Mil) → coorte f
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995

cohort

(ˈkouhoːt) noun
a group of people. She has cohorts of admirers.
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.
References in periodicals archive ?
The meta-analysis used individual patient-level data on 11,954 participants in six prospective observational cohort studies conducted in four countries.
Yun Fu, M.D., from Chang Gung Memorial Hospital in Taiwan, and colleagues assessed case-control, cross-sectional, or cohort studies that examined either the odds or risk for IBD in patients with psoriasis.
BMI and all cause mortality: systematic review and non-linear dose-response meta-analysis of 230 cohort studies with 3.74 million deaths among 30.3 million participants.
The review included a retrospective case series, a retrospective case control study, three retrospective cohort studies, two prospective cohort studies, one cross-sectional study, and one study combining prospective and retrospective cohorts.
One meta-analysis in particular analyzed several cohort studies, which included over a million children, and reported there is no connection between autism and the MMR vaccine, thimerosal, or mercury.
In total, 4 randomised, controlled trials, 1 nested case-control study and 26 cohort studies were included in the analysis.
The six prospective cohort studies included in the new analysis are well known in the field of osteoarthritis research: the Framingham (Mass.) Osteoarthritis Study, the Rotterdam (the Netherlands) Study, the Multicenter Osteoarthritis Study (MOST), the Johnston County (N.C.) Osteoarthritis Project, the Tasmanian Older Adult Cohort Study, and the Chingford (England) 1000 Women Study.
Insomnia is associated with an increased risk of future myocardial infarction (MI) and stroke, according to a meta-analysis of prospective cohort studies published in the European Journal of Preventive Cardiology.
We screened the potentially relevant studies and, in accordance with predefined criteria, we identified and considered in our systematic review the following number of studies on the association of hepatitis C and nonliver cancers: (1) PAC: 3 case-control studies and 7 cohort studies; (2) TC: 5 case-control studies and 7 cohort studies; (3) RC: 3 case-control studies and 4 cohort studies; (4) OC: 2 case-control studies and 4 cohort studies; (5) BC: 2 case-control studies and 5 cohort studies; (6) LC: 2 case-control studies and 4 cohort studies; and (7) esophagus/stomach/colon/rectal: 2 case-control studies and 5 cohort studies.
Breastfeeding exclusively for 6 months is associated with a 30% to 50% reduction in risk (strength of recommendation [SOR]: B, meta-analysis of cohort studies and subsequent cohort studies).
In the report, titled "Periodontal Disease and Incident Lung Cancer Risk: A Meta-Analysis of Cohort Studies," the authors assess the findings of five cohort studies that evaluated 321,420 participants.