kei apple vs Dovyalis caffra

kei apple and Dovyalis caffra both are nouns.

Word	Noun	Adjective	Verb	Adverb
kei apple	Yes	No	No	No
Dovyalis caffra	Yes	No	No	No

As nouns, kei apple and Dovyalis caffra are synonyms defined as:

kei apple and Dovyalis caffra: vigorous South African spiny shrub grown for its round yellow juicy edible fruits

Other synonyms of kei apple include kei apple bush.

kei apple (noun)	Dovyalis caffra (noun)
vigorous South African spiny shrub grown for its round yellow juicy edible fruits	vigorous South African spiny shrub grown for its round yellow juicy edible fruits