a group or company

She has a cohort of admirers.

a companion or associate.

one of the ten divisions in an ancient Roman legion, numbering from 300 to 600 soldiers.

any group of soldiers or warriors.

an accomplice; abettor

He got off with probation, but his cohorts got ten years apiece.

a group of persons sharing a particular statistical or demographic characteristic

the cohort of all children born in 1980.

Biology . an individual in a population of the same species.

noun

enemy , opponent

noun

accomplice , adherent , aide , ally , assistant , associate , companion , company , comrade , confrere , consociate , contingent , disciple , follower , friend , hand , legion , mate , myrmidon , pal , partisan , regiment , satellite , sidekick , stall , supporter , affiliate , colleague , confederate , copartner , fellow , partner , henchman , minion , buddy , chum