tomato plant vs tomato

tomato plant and tomato both are nouns.

Word	Noun	Adjective	Verb	Adverb
tomato plant	Yes	No	No	No
tomato	Yes	No	No	No

As nouns, tomato plant and tomato are synonyms defined as:

tomato plant and tomato: native to South America; widely cultivated in many varieties

Other synonyms of tomato plant include love apple, Lycopersicon esculentum.

tomato plant (noun)	tomato (noun)
native to South America; widely cultivated in many varieties	mildly acid red or yellow pulpy fruit eaten as a vegetable
	native to South America; widely cultivated in many varieties