carambola vs carambola tree

carambola and carambola tree both are nouns.

Word	Noun	Adjective	Verb	Adverb
carambola	Yes	No	No	No
carambola tree	Yes	No	No	No

As nouns, carambola and carambola tree are synonyms defined as:

carambola and carambola tree: East Indian tree bearing deeply ridged yellow-brown fruit

Other synonyms of carambola include Averrhoa carambola.

carambola (noun)	carambola tree (noun)
deeply ridged yellow-brown tropical fruit; used raw as a vegetable or in salad or when fully ripe as a dessert	East Indian tree bearing deeply ridged yellow-brown fruit
East Indian tree bearing deeply ridged yellow-brown fruit