1
- the troops stationed in a fortress or town to defend it（驻扎在要塞或城镇的）卫戍部队, 守备部队。
1.1
- the building occupied by such troops驻地, 卫戍大楼。
with obj.
1- provide (a place) with a body of troops（向某地）派（兵）驻防：
a king needed to garrison a number of castles and towns to control his subjects.
为了控制臣民, 国王要向许多城堡和城镇派兵。
1.1
- with obj.and adverbial of place station (troops) in a particular place（在特定地点）驻扎（部队）：
Soviet forces were garrisoned in Lithuania.
苏联曾在立陶宛驻兵。
词源
Middle English （in the sense 'safety, means of protection'）： from Old French garison, from garir 'defend, provide', of Germanic origin.