ivory vs bone

ivory and bone both are nouns.

Word	Noun	Adjective	Verb	Adverb
ivory	Yes	No	No	No
bone	Yes	Yes	Yes	No

As nouns, ivory and bone are synonyms defined as:

Other synonyms of ivory include off-white, pearl.

ivory (noun)	bone (noun)
a shade of white the color of bleached bones	a shade of white the color of bleached bones
a hard smooth ivory colored dentine that makes up most of the tusks of elephants and walruses	rigid connective tissue that makes up the skeleton of vertebrates
	the porous calcified substance from which bones are made

ivory (adjective)	bone (adjective)
	consisting of or made up of bone

ivory (verb)	bone (verb)
	remove the bones from
	study intensively, as before an exam