peacekeeper vs military

peacekeeper and military both are nouns.

Word	Noun	Adjective	Verb	Adverb
peacekeeper	Yes	No	No	No
military	Yes	Yes	No	No

peacekeeper (noun)	military (noun)
the pistol of a law officer in the old West	the military forces of a nation
someone who keeps peace
a member of a military force that is assigned (often with international sanction) to preserve peace in a trouble area

peacekeeper (adjective)	military (adjective)
	associated with or performed by members of the armed services as contrasted with civilians
	characteristic of or associated with soldiers or the military
	of or relating to the study of the principles of warfare