nightclub vs honkytonk

nightclub and honkytonk both are nouns.

Word	Noun	Adjective	Verb	Adverb
nightclub	Yes	No	No	No
honkytonk	Yes	No	No	No

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

nightclub: a spot that is open late at night and that provides entertainment (as singers or dancers) as well as dancing and food and drink
honkytonk: a cheap disreputable nightclub or dance hall

Other hyponyms of nightclub include dive, supper club.

nightclub (noun)	honkytonk (noun)
a spot that is open late at night and that provides entertainment (as singers or dancers) as well as dancing and food and drink	a cheap disreputable nightclub or dance hall