gravel pit vs quarry

gravel pit and quarry both are nouns.

Word	Noun	Adjective	Verb	Adverb
gravel pit	Yes	No	No	No
quarry	Yes	No	Yes	No

As nouns, quarry is a hypernym of gravel pit; that is, quarry is a word with a broader meaning than gravel pit:

Other hypernyms of gravel pit include pit, stone pit.

gravel pit (noun)	quarry (noun)
a quarry for gravel	animal hunted or caught for food
	a surface excavation for extracting stone or slate
	a person who is the aim of an attack (especially a victim of ridicule or exploitation) by some hostile person or influence

gravel pit (verb)	quarry (verb)
	extract (something such as stones) from or as if from a quarry