tree tomato vs tamarillo

tree tomato and tamarillo both are nouns.

Word	Noun	Adjective	Verb	Adverb
tree tomato	Yes	No	No	No
tamarillo	Yes	No	No	No

As nouns, tree tomato and tamarillo are synonyms defined as:

tree tomato and tamarillo: South American arborescent shrub having pale pink blossoms followed by egg-shaped reddish-brown edible fruit somewhat resembling a tomato

tree tomato (noun)	tamarillo (noun)
South American arborescent shrub having pale pink blossoms followed by egg-shaped reddish-brown edible fruit somewhat resembling a tomato	South American arborescent shrub having pale pink blossoms followed by egg-shaped reddish-brown edible fruit somewhat resembling a tomato