In ancient times, a cohort was a military unit, one of ten divisions in a Roman legion. The term passed into English in the 15th century, when it was used in translations and writings about Roman history.

A cohort is a group of people, as in The senator is traveling with a large cohort. It can also refer to an associate or companion, as in I’m meeting up with some of my cohorts from my days as a salesperson.

COHORT definition: 1. a group of people who share a characteristic, usually age: 2. a group of people who support a…. Learn more.

A cohort of people is a group who have something in common. Cohort is used especially when a group is being looked at as a whole for statistical purposes. Tests were carried out on the entire cohort of …

Cohort or cohortes means ‘’’A definite group of people’’’, derived from the assimilated form of com (with) plus chorus (act together) from PIE verb *gher- (to grasp, to enclose).

Mar 6, 2026 · A cohort is a group of people who share a common characteristic or experience within a defined time period. The term comes from the Latin word “cohors,” originally describing a unit of 300 …

Nov 19, 2025 · Cohort Analysis is a method of grouping and examining data based on shared characteristics of a specific set of individuals. By segmenting users for example, by acquisition date, …

Definition of cohort noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Feb 12, 2026 · If you're wondering about the meaning of cohort in school, it refers to a group of students who start a grade, course, or program at the same time and move through it together over a set period.

cohort, n. meanings, etymology, pronunciation and more in the Oxford English Dictionary