off-white vs bone

off-white and bone both are nouns.

Word	Noun	Adjective	Verb	Adverb
off-white	Yes	Yes	No	No
bone	Yes	Yes	Yes	No

As nouns, off-white and bone are synonyms defined as:

Other synonyms of off-white include ivory, pearl.

off-white (noun)	bone (noun)
a shade of white the color of bleached bones	a shade of white the color of bleached bones
	rigid connective tissue that makes up the skeleton of vertebrates
	the porous calcified substance from which bones are made

off-white (adjective)	bone (adjective)
of something having a color tending toward white	consisting of or made up of bone

off-white (verb)	bone (verb)
	remove the bones from
	study intensively, as before an exam