garrison vs fort

garrison and fort both are nouns.

Word	Noun	Adjective	Verb	Adverb
garrison	Yes	No	Yes	No
fort	Yes	No	Yes	No

As nouns, garrison and fort are synonyms defined as:

garrison (noun)	fort (noun)
a fortified military post where troops are stationed	a fortified defensive structure
the troops who maintain and guard a fortified place	a fortified military post where troops are stationed

garrison (verb)	fort (verb)
station (troops) in a fort or garrison	station (troops) in a fort
	enclose by or as if by a fortification
	gather in, or as if in, a fort, as for protection or defense