cherry stone vs endocarp

cherry stone and endocarp both are nouns.

Word	Noun	Adjective	Verb	Adverb
cherry stone	Yes	No	No	No
endocarp	Yes	No	No	No

As nouns, endocarp is a hypernym of cherry stone; that is, endocarp is a word with a broader meaning than cherry stone:

cherry stone: the stone seed of a cherry
endocarp: the hard inner (usually woody) layer of the pericarp of some fruits (as peaches or plums or cherries or olives) that contains the seed

Other hypernyms of cherry stone include pit, stone.

cherry stone (noun)	endocarp (noun)
the stone seed of a cherry	the hard inner (usually woody) layer of the pericarp of some fruits (as peaches or plums or cherries or olives) that contains the seed