military vs military officer

military and military officer both are nouns.

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

military (noun)	military officer (noun)
the military forces of a nation	any person in the armed services who holds a position of authority or command

military (adjective)	military officer (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