military vs ensign

military and ensign both are nouns.

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

military (noun)	ensign (noun)
the military forces of a nation	colors flown by a ship to show its nationality
	an emblem flown as a symbol of nationality
	a person who holds a commissioned rank in the United States Navy or the United States Coast Guard; below lieutenant junior grade

military (adjective)	ensign (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