avocado vs avocado tree

avocado and avocado tree both are nouns.

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

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

avocado and avocado tree: tropical American tree bearing large pulpy green fruits

Other synonyms of avocado include Persea Americana.

avocado (noun)	avocado tree (noun)
a pear-shaped tropical fruit with green or blackish skin and rich yellowish pulp enclosing a single large seed	tropical American tree bearing large pulpy green fruits
tropical American tree bearing large pulpy green fruits

avocado (adjective)	avocado tree (adjective)
of the dull yellowish green of the meat of an avocado