military vs lieutenant commander

military and lieutenant commander both are nouns.

Word	Noun	Adjective	Verb	Adverb
military	Yes	Yes	No	No
lieutenant commander	Yes	No	No	No

military (noun)	lieutenant commander (noun)
the military forces of a nation	a commissioned officer in the Navy ranking above a lieutenant and below a commander

military (adjective)	lieutenant commander (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