armed forces vs reinforcement

armed forces and reinforcement both are nouns.

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

armed forces (noun)	reinforcement (noun)
the military forces of a nation	an act performed to strengthen approved behavior
	a military operation (often involving new supplies of men and materiel) to strengthen a military force or aid in the performance of its mission
	a device designed to provide additional strength
	(psychology) a stimulus that strengthens or weakens the behavior that produced it
	information that makes more forcible or convincing