quince vs false fruit

quince and false fruit both are nouns.

Word	Noun	Adjective	Verb	Adverb
quince	Yes	No	No	No
false fruit	Yes	No	No	No

As nouns, false fruit is a hypernym of quince; that is, false fruit is a word with a broader meaning than quince:

quince: aromatic acid-tasting pear-shaped fruit used in preserves
false fruit: a fleshy fruit (apple or pear or related fruits) having seed chambers and an outer fleshy part

Other hypernyms of quince include edible fruit, pome.

quince (noun)	false fruit (noun)
aromatic acid-tasting pear-shaped fruit used in preserves	a fleshy fruit (apple or pear or related fruits) having seed chambers and an outer fleshy part
small Asian tree with pinkish flowers and pear-shaped fruit; widely cultivated