cohort

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++co·hort /ˈkəʊhɔːt $ ˈkoʊhɔːrt/ noun [countable]  1  GROUP OF PEOPLEsomeone’s cohorts are their friends who support them and stay loyal to them – used to show disapproval 同伙，支持者〔含贬义〕 Mark and his cohorts eventually emerged from the studio. 马克和他的同伴终于从工作室里出来了。2  technical a group of people of the same age, social class etc, especially when they are being studied 〔尤指作为研究对象的相同年龄、社会阶层等的〕一批人，一群人 a cohort of 386 patients aged 65 plus 386名65岁以上的病人

Examples from the Corpus

cohort• Our findings are based on a cohort of women seeking insemination treatment because their partners had a fertility problem.• The 74 million Baby-Boom cohort dwarfs the 40 million Generation Xers.• It hit 58 percent in a gay cohort in Denver by 1985, and 58 percent in Seattle in 1986.• Hawk and his cohorts cheated Jack out of a fortune.• It is highly probable that many of those in the initial cohort of patients would have died.• "Baby boomers" are the largest cohort of Americans living today.• Figures for 1984 show 67. 4 percent of the cohort infected.• The overall in-hospital mortality of 15.6% of this cohort was similar to short-term mortality of similar cohorts in previous studies.• By 1984,43. 7 percent of the New York cohort was infected.Origin cohort (1400-1500) Latin cohors “enclosed place, people in an enclosure, unit of soldiers in the ancient Roman army”

co·hort nounChineseSyllable  

stay them their loyal someone’s who cohorts friends support are and Corpus

cohort
co‧hort /ˈkəʊhɔːt $ ˈkoʊhɔːrt/ noun [countable]1. someone’s cohorts are their friends who support them and stay loyal to them – used in order to show disapproval:
    Mark and his cohorts eventually emerged from the studio.
2. technical a group of people of the same age, social class etc, especially when they are being studied:
    a cohort of 386 patients aged 65 plus

co·hortBrE /ˈkəʊhɔːt/ 🔊NAmE /ˈkoʊhɔːrt/ 🔊 noun [countable + singular or plural verb] (specialist) a group of people who share a common feature or aspect of behaviour （有共同特点或举止类同的）一群人，一批人◆the 1999 birth cohort (= all those born in 1999) 1999 年出生的同龄人口(disapproving) a member of a group of people who support another person 同伙；支持者◆Robinson and his cohorts were soon ejected from the hall. 鲁滨逊及其同伙很快被赶出了大厅。🔊🔊