water chinquapin vs edible seed

water chinquapin and edible seed both are nouns.

Word	Noun	Adjective	Verb	Adverb
water chinquapin	Yes	No	No	No
edible seed	Yes	No	No	No

As nouns, edible seed is a hypernym of water chinquapin; that is, edible seed is a word with a broader meaning than water chinquapin:

water chinquapin: edible nutlike seeds of an American lotus having the flavor of a chinquapin
edible seed: many are used as seasoning

water chinquapin (noun)	edible seed (noun)
edible nutlike seeds of an American lotus having the flavor of a chinquapin	many are used as seasoning
water lily of eastern North America having pale yellow blossoms and edible globular nutlike seeds