a group of people with a shared characteristic

a cohort of civil servants patiently drafting legislation

a supporter or companion

young Jack arrived with three of his cohorts

a long-time cohort of the band

an ancient Roman military unit, comprising six centuries, equal to one tenth of a legion

divide (people) into groups with shared characteristics

in the plan elementary students will be cohorted, or placed, in an assigned class

those who test positive are being cohorted on two designated floors to prevent the spread of the virus