military vs naval engineer

military and naval engineer both are nouns.

Word	Noun	Adjective	Verb	Adverb
military	Yes	Yes	No	No
naval engineer	Yes	No	No	No

military (noun)	naval engineer (noun)
the military forces of a nation	a naval officer responsible for the operation and maintenance of the ship's engines

military (adjective)	naval engineer (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