definition garrison
Definition of 'garrison'. Word Frequency. garrison (gÃ¦rÉªsÉn ) Word forms: plural , 3rd person singular present tense garrisons , present participle garrisoning , past tense , past participle garrisoned. 1. countable noun. A garrison is a group of soldiers whose task is to guard the town or building where they live. ...a five-hundred-man French army garrison. Synonyms: troops, group, unit, section More Synonyms of garrison. 2. countable noun. A garrison is the buildings which the soldiers live in.