cashew vs cashew tree

cashew and cashew tree both are nouns.

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

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

cashew and cashew tree: tropical American evergreen tree bearing kidney-shaped nuts that are edible only when roasted

Other synonyms of cashew include Anacardium occidentale.

cashew (noun)	cashew tree (noun)
kidney-shaped nut edible only when roasted	tropical American evergreen tree bearing kidney-shaped nuts that are edible only when roasted
tropical American evergreen tree bearing kidney-shaped nuts that are edible only when roasted