shin bone vs leg bone

shin bone and leg bone both are nouns.

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

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

shin bone: the inner and thicker of the two bones of the human leg between the knee and ankle
leg bone: a bone of the leg

shin bone (noun)	leg bone (noun)
the inner and thicker of the two bones of the human leg between the knee and ankle	a bone of the leg
a cut of meat from the lower part of the leg