marrow vs summer squash

marrow and summer squash both are nouns.

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

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

marrow: large elongated squash with creamy to deep green skins
summer squash: any of various fruits of the gourd family that mature during the summer; eaten while immature and before seeds and rind harden

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

marrow: any of various squash plants grown for their elongated fruit with smooth dark green skin and whitish flesh
summer squash: any of various usually bushy plants producing fruit that is eaten while immature and before the rind or seeds harden

Other hypernyms of marrow include Cucurbita pepo melopepo, summer squash vine.

marrow (noun)	summer squash (noun)
the fatty network of connective tissue that fills the cavities of bones	any of various fruits of the gourd family that mature during the summer; eaten while immature and before seeds and rind harden
the choicest or most essential or most vital part of some idea or experience	any of various usually bushy plants producing fruit that is eaten while immature and before the rind or seeds harden
large elongated squash with creamy to deep green skins
very tender and very nutritious tissue from marrowbones
any of various squash plants grown for their elongated fruit with smooth dark green skin and whitish flesh