armed forces vs garrison

armed forces and garrison both are nouns.

Word	Noun	Adjective	Verb	Adverb
armed forces	Yes	No	No	No
garrison	Yes	No	Yes	No

armed forces (noun)	garrison (noun)
the military forces of a nation	a fortified military post where troops are stationed
	the troops who maintain and guard a fortified place

armed forces (verb)	garrison (verb)
	station (troops) in a fort or garrison