bare bone vs bone

bare bone and bone both are nouns.

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

As nouns, bone is a hypernym of bare bone; that is, bone is a word with a broader meaning than bare bone:

Other hypernyms of bare bone include os.

bare bone (noun)	bone (noun)
bone stripped of flesh	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

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

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