honkytonk vs night club

honkytonk and night club both are nouns.

Word	Noun	Adjective	Verb	Adverb
honkytonk	Yes	No	No	No
night club	Yes	No	No	No

As nouns, night club is a hypernym of honkytonk; that is, night club is a word with a broader meaning than honkytonk:

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

Other hypernyms of honkytonk include cabaret, club, nightclub, nightspot.

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