armed forces vs ranger

armed forces and ranger both are nouns.

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

armed forces (noun)	ranger (noun)
the military forces of a nation	an official who is responsible for managing and protecting an area of forest
	a member of a military unit trained as shock troops for hit-and-run raids