転んでひざの皮がむけた。
I fell and scraped the skin off my knee.
This drum is made with animal hide.
Used for the outer layer of fruit, vegetables, nuts, trees, and similar natural objects: a peel, rind, husk, or bark depending on the item.
I peeled the mandarin and ate it.
The bark of the old tree is peeling off.
This mandarin has thick skin and is hard to peel.
The skin on my sunburned shoulders started peeling.
I wrapped the filling in spring roll wrappers and fried it.
川 (river) and 皮 (skin, peel) are pronounced identically but refer to completely unrelated things, distinguished only by kanji and context.
皮 refers to raw, unprocessed skin or peel, while 皮革 specifically means leather that has been tanned and processed for use.
皮 usually refers to the skin or peel of animals, fruits, or objects, while 皮膚 is reserved for human (or animal) skin as a living organ.
皮 is a general word for skin, peel, or rind, while 毛皮 specifically denotes an animal's fur-covered pelt.
thin skin; thin membrane; thin outer layer
thread-sail filefish · skinning; stripping bark; skinner; barker
over-optimistic calculation; counting one's chickens before they're hatched
rawhide
eta; lowly people (Edo period)
outer layer; veneer; one skin
thick hide; shamelessness
thin inner membrane of a bamboo shoot tip
pick-guard; protective patch
cedar bark
astringent inner skin of a chestnut
protective cover on a clog
cuticle; nail cuticle · endocarp
leather goods