military engineer vs military

military engineer and military both are nouns.

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

military engineer (noun)	military (noun)
a member of the military who is trained in engineering and construction work	the military forces of a nation

military engineer (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