noun

• (uncountable) The outer protective layer of the body of any animal, including of a human.
  "He is so disgusting he makes my skin crawl."
• (uncountable) The outer protective layer of the fruit of a plant.
• (countable) The skin and fur of an individual animal used by humans for clothing, upholstery, etc.
• (countable) A congealed layer on the surface of a liquid.
  "In order to get to the rest of the paint in the can, you′ll have to remove the skin floating on top of it."

verb

• (transitive) To injure the skin of.
  "He fell off his bike and skinned his knee on the concrete."
• (transitive) To remove the skin and/or fur of an animal or a human.
• (colloquial) To high five.
• (transitive, computing, colloquial) To apply a skin to (a computer program).
  "Can I skin the application to put the picture of my cat on it?"