dive vs skin-dive

dive and skin-dive both are nouns.

Word	Noun	Adjective	Verb	Adverb
dive	Yes	No	Yes	No
skin-dive	Yes	No	Yes	No

As verbs, skin-dive is a hyponym of dive; that is, skin-dive is a word with a more specific, narrower meaning than dive:

Other hyponyms of dive include snorkel.

dive (noun)	skin-dive (noun)
a steep nose-down descent by an aircraft	underwater swimming without any more breathing equipment than a snorkel
a headlong plunge into water
a cheap disreputable nightclub or dance hall

dive (verb)	skin-dive (verb)
drop steeply	swim underwater with no breathing apparatus other than a snorkel
swim under water
plunge into water