military vs military installation

military and military installation both are nouns.

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

military (noun)	military installation (noun)
the military forces of a nation	any facility servicing military forces

military (adjective)	military installation (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