smoke vs gun smoke

smoke and gun smoke both are nouns.

Word	Noun	Adjective	Verb	Adverb
smoke	Yes	No	Yes	No
gun smoke	Yes	No	No	No

As nouns, gun smoke is a hyponym of smoke; that is, gun smoke is a word with a more specific, narrower meaning than smoke:

Other hyponyms of smoke include smother, tobacco smoke.

smoke (noun)	gun smoke (noun)
the act of smoking tobacco or other substances	smoke created by the firing of guns
(baseball) a pitch thrown with maximum velocity
tobacco leaves that have been made into a cylinder
street names for marijuana
something with no concrete substance
an indication of some hidden activity
a cloud of fine particles suspended in a gas
a hot vapor containing fine particles of carbon being produced by combustion

smoke (verb)	gun smoke (verb)
inhale and exhale smoke from cigarettes, cigars, pipes
emit a cloud of fine particles