calcaneus vs bone

calcaneus and bone both are nouns.

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

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

Other hypernyms of calcaneus include os.

calcaneus (noun)	bone (noun)
the largest tarsal bone; forms the human heel	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

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

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