leg vs calf bone

leg and calf bone both are nouns.

Word	Noun	Adjective	Verb	Adverb
leg	Yes	No	No	No
calf bone	Yes	No	No	No

leg (noun)	calf bone (noun)
a section or portion of a journey or course	the outer and thinner of the two bones of the human leg between the knee and ankle
(nautical) the distance traveled by a sailing vessel on a single tack
a cloth covering consisting of the part of a pair of trousers that covers a person's leg
one of the supports for a piece of furniture
a prosthesis that replaces a missing leg
a human limb; commonly used to refer to a whole limb but technically only the part of the limb between the knee and ankle
a structure in animals that is similar to a human leg and used for locomotion
the limb of an animal used for food
a part of a forked or branching shape