Shin
Part of speech: noun
Definition: The front part of the leg below the knee; the front edge of the shin bone; the lower part of the leg; the shank. The twenty first letter of the Hebrew alphabet, ש.
Part of speech: verb
Definition: To climb a mast, tree, rope, or the like, by embracing it alternately with the arms and legs, without help of steps, spurs, or the like; -- used with up.
Tibia
Part of speech: noun
Definition: The inner and usually the larger of the two bones of the leg or hind limb below the knee.A segment of an insect's leg.