lights-out vs military

lights-out and military both are nouns.

Word	Noun	Adjective	Verb	Adverb
lights-out	Yes	No	No	No
military	Yes	Yes	No	No

lights-out (noun)	military (noun)
(military) signal to turn the lights out	the military forces of a nation
a prescribed bedtime

lights-out (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