swimming hole vs pond

swimming hole and pond both are nouns.

Word	Noun	Adjective	Verb	Adverb
swimming hole	Yes	No	No	No
pond	Yes	No	No	No

As nouns, pond is a hypernym of swimming hole; that is, pond is a word with a broader meaning than swimming hole:

swimming hole: a small body of water (usually in a creek) that is deep enough to use for swimming
pond: a small lake

Other hypernyms of swimming hole include pool.

swimming hole (noun)	pond (noun)
a small body of water (usually in a creek) that is deep enough to use for swimming	a small lake