skin

(かわ) Skin, (human or animal, but not to be confused with fur, which is 毛皮!). Also the skin of an apple, or even the crust of bread!   $$$
 
(はだ) Refers to the skin of a person – not to leather or animal skin.
 
(ひふ) Skin (doctor word – like the English ‘epidermis’).
 
(かわ) Leather.