kiwi vs kiwi fruit

kiwi and kiwi fruit both are nouns.

Word	Noun	Adjective	Verb	Adverb
kiwi	Yes	No	No	No
kiwi fruit	Yes	No	No	No

As nouns, kiwi and kiwi fruit are synonyms defined as:

kiwi and kiwi fruit: fuzzy brown egg-shaped fruit with slightly tart green flesh

Other synonyms of kiwi include Chinese gooseberry.

kiwi (noun)	kiwi fruit (noun)
nocturnal flightless bird of New Zealand having a long neck and stout legs; only surviving representative of the order Apterygiformes	fuzzy brown egg-shaped fruit with slightly tart green flesh
fuzzy brown egg-shaped fruit with slightly tart green flesh
climbing vine native to China; cultivated in New Zealand for its fuzzy edible fruit with green meat