war vessel vs military

war vessel and military both are nouns.

Word	Noun	Adjective	Verb	Adverb
war vessel	Yes	No	No	No
military	Yes	Yes	No	No

war vessel (noun)	military (noun)
a government ship that is available for waging war	the military forces of a nation

war vessel (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