cohort

/ˈkəʊhɔːt/ (bre, ipa) · /ˈkəʊhɔːrt/ (ame, ipa) · /ˈkō-ˌhȯrt/ (ame, mw)

cohort — noun

  • cohortsingular
  • cohortsplural

1. a group of people who share a particular life stage, feature, or experience — fo

1.名詞B2
釋義

a group of people who share a particular life stage, feature, or experience — for instance, everyone born in the same year, hired at the same company, or starting school at the same time.

例句

The 1990s cohort of nurses at Taipei General Hospital retired together last spring.

cohort + of + noun (profession group)

Researchers followed the same cohort of children from kindergarten through high school.

same cohort — longitudinal study context

同義詞
  • generation

    broader term; generation refers to people born and living at about the same time, while cohort is narrower and can be defined by any shared feature (e.g. year of joining a company).

  • age group

    more colloquial and less precise than cohort; any set of people within a given age range.

  • batch

    informal; often used for groups hired or admitted at the same time (e.g. a batch of new recruits).

文法句型

cohort + of + noun (plural)

adjective + cohort

用法筆記

In academic and business writing, cohort most often refers to a birth cohort or a hiring cohort. The word is usually followed by of + a plural noun that names the shared characteristic.

常見錯誤

❌A cohort of student protested outside the building.
✅A cohort of students protested outside the building.
💡cohort refers to a group, so it is followed by a plural noun.
❌The 1995 cohort are very different from the 2005 cohort.
✅People in the 1995 cohort are very different from those in the 2005 cohort.
💡some readers prefer explicit human reference rather than using birth year as a shorthand subject.

2. a set of individuals who stand behind a single prominent figure — a politician,

2.名詞B2
釋義

a set of individuals who stand behind a single prominent figure — a politician, a chief executive, or a community organiser — and actively promote that person's goals.

例句

A loyal cohort of longtime supporters surrounded the senator when he arrived at the rally.

loyal cohort — typical modifier

Each candidate for the CEO position brought their own cohort of advisers to the meeting.

possessive: their own cohort

同義詞
  • supporters

    more general and neutral; does not imply organised loyalty the way cohort does.

  • followers

    common in political and religious contexts; can imply a less formal relationship than cohort.

  • entourage

    smaller and more personal; often refers to assistants and companions who travel with a prominent person.

反義詞
  • opponents

    people who actively oppose the same leader or figure.

文法句型

possessive + cohort + of + noun

用法筆記

Frequently paired with a possessive noun or pronoun (the general's cohort, her inner cohort). Unlike sense 1, this sense does not describe people who merely share a trait — they are actively supporting a person.

常見錯誤

❌The cohort of the CEO includes several department heads.
✅The CEO's cohort includes several department heads.
💡cohort is more naturally used with a possessive form than with of the.

3. a body of soldiers or warriors fighting as a unit; in ancient Rome, a tenth part

3.名詞C1
釋義

a body of soldiers or warriors fighting as a unit; in ancient Rome, a tenth part of a legion, comprising several hundred men.

例句

A Roman cohort marched north through the alpine pass to reinforce the frontier fort.

historical military context

The historian described how each cohort in the legion carried its own standard into battle.

同義詞
  • legion

    larger than a cohort; the entire Roman legion was made up of ten cohorts.

  • battalion

    modern equivalent; a military unit of a few hundred to about a thousand soldiers.

  • company

    smaller than a cohort in modern armies; typically 80–250 soldiers.

文法句型

cohort + of + plural noun (soldiers/warriors)

用法筆記

This sense is primarily historical and literary. In modern military contexts, battalion or company is used instead. Outside of Roman history writing, this sense appears mainly in fantasy and historical fiction.

常見錯誤

❌The cohort attacked the enemy position at dawn.' (in a modern context)
✅The battalion attacked the enemy position at dawn.
💡cohort for a modern army unit sounds archaic. Use battalion or company instead.