The definition of a garrison is a military fort or a body of troops stationed at a military fort.(noun)
An example of garrison is a group of army units.
Garrison is defined as to provide or occupy with troops.(verb)
An example of garrison is to send army troops to an area in need.
See garrison in Webster's New World College Dictionary
Origin: ME garison < OFr < garir (see garret); meaning infl. by assoc. with ME & OFr garnison, a garrison, provisions < garnir, to furnish: see garnish
See garrison in American Heritage Dictionary 4
Origin: Middle English garison, fortified place
Origin: , from Old French
Origin: , from garir, to defend
Origin: , of Germanic origin; see wer-4 in Indo-European roots.
Learn more about garrison