gean vs sweet cherry

gean and sweet cherry both are nouns.

Word	Noun	Adjective	Verb	Adverb
gean	Yes	No	No	No
sweet cherry	Yes	No	No	No

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

gean: wild or seedling sweet cherry used as stock for grafting
sweet cherry: large Eurasian tree producing small dark bitter fruit in the wild but edible sweet fruit under cultivation

Other hypernyms of gean include Prunus avium.

gean (noun)	sweet cherry (noun)
wild or seedling sweet cherry used as stock for grafting	any of several fruits of cultivated cherry trees that have sweet flesh
	large Eurasian tree producing small dark bitter fruit in the wild but edible sweet fruit under cultivation