apple nut vs ivory nut

apple nut and ivory nut both are nouns.

Word	Noun	Adjective	Verb	Adverb
apple nut	Yes	No	No	No
ivory nut	Yes	No	No	No

As nouns, apple nut and ivory nut are synonyms defined as:

apple nut and ivory nut: nutlike seed of a South American palm; the hard white shell takes a high polish and is used for e.g. buttons

Other synonyms of apple nut include vegetable ivory.

apple nut (noun)	ivory nut (noun)
nutlike seed of a South American palm; the hard white shell takes a high polish and is used for e.g. buttons	nutlike seed of a South American palm; the hard white shell takes a high polish and is used for e.g. buttons