smoke vs cigar

smoke and cigar both are nouns.

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

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

Other hyponyms of smoke include butt, cigaret, cigarette, coffin nail, fag.

smoke (noun)	cigar (noun)
the act of smoking tobacco or other substances	a roll of tobacco for smoking
(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)	cigar (verb)
inhale and exhale smoke from cigarettes, cigars, pipes
emit a cloud of fine particles