summer squash vs squash

summer squash and squash both are nouns.

Word	Noun	Adjective	Verb	Adverb
summer squash	Yes	No	No	No
squash	Yes	No	Yes	No

As nouns, squash is a hypernym of summer squash; that is, squash is a word with a broader meaning than summer squash:

summer squash: any of various fruits of the gourd family that mature during the summer; eaten while immature and before seeds and rind harden
squash: edible fruit of a squash plant; eaten as a vegetable

As nouns, squash is a hypernym of summer squash; that is, squash is a word with a broader meaning than summer squash:

summer squash: any of various usually bushy plants producing fruit that is eaten while immature and before the rind or seeds harden
squash: any of numerous annual trailing plants of the genus Cucurbita grown for their fleshy edible fruits

Other hypernyms of summer squash include squash vine.

summer squash (noun)	squash (noun)
any of various fruits of the gourd family that mature during the summer; eaten while immature and before seeds and rind harden	a game played in an enclosed court by two or four players who strike the ball with long-handled rackets
any of various usually bushy plants producing fruit that is eaten while immature and before the rind or seeds harden	edible fruit of a squash plant; eaten as a vegetable
	any of numerous annual trailing plants of the genus Cucurbita grown for their fleshy edible fruits

summer squash (verb)	squash (verb)
	to compress with violence, out of natural shape or condition