nightspot vs dive

nightspot and dive both are nouns.

Word	Noun	Adjective	Verb	Adverb
nightspot	Yes	No	No	No
dive	Yes	No	Yes	No

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

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

Other hyponyms of nightspot include honkytonk, supper club.

nightspot (noun)	dive (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 steep nose-down descent by an aircraft
	a headlong plunge into water
	a cheap disreputable nightclub or dance hall