skin

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun The membranous tissue forming the external covering or integument of an animal and consisting in vertebrates of the epidermis and dermis.
• noun An animal pelt, especially the comparatively pliable pelt of a small or young animal.
• noun A usually thin, closely adhering outer layer.
• noun A thin, close-fitting, usually elastic garment, especially a shirt, worn by scuba divers and others who engage in water sports for protection against scrapes and other superficial injuries.
• noun A container for liquids that is made of animal skin.
• noun Music A drumhead.
• noun One of a pair of strips of fabric or other material temporarily applied to the undersides of a pair of skis to provide traction while ascending slopes.
• noun Computers A design layout for the interface of a program such as a media player or instant messaging application that a user can select and often customize in order to alter the default appearance.
• noun Informal One's life or physical survival.
• intransitive verb To remove skin from.
• intransitive verb To bruise, cut, or injure the skin or surface of.
• intransitive verb To remove (an outer covering); peel off.
• intransitive verb To cover with a skin or a similar layer.
• intransitive verb Slang To fleece; swindle.
• intransitive verb To become covered with skin or a similar layer.
• intransitive verb To pass with little room to spare.
• adjective Of, relating to, or depicting pornography.
• idiom (by the skin of (one's) teeth) By the smallest margin.
• idiom (get under (someone's) skin) To irritate or stimulate; provoke.
• idiom (get under (someone's) skin) To preoccupy someone; become an obsession.
• idiom (have a thick skin) To be slow to take offense.
• idiom (have a thick skin) To be insensitive to the needs or concerns of others.
• idiom (make (one's) skin/flesh) To cause one to be afraid or disgusted.
• idiom (under the skin) Beneath the surface; fundamentally.

from The Century Dictionary.

• To provide with skin; cover as with a skin.
• To strip the skin from; flay; peel.
• To strip or peel off; remove by turning back and drawing off inside out.
• To strip of valuable properties or possessions; fleece; plunder; rob; cheat; swindle.
• To copy or pretend to learn by employment of irregular or forbidden expedients, as a college exercise: as, to skin an example in mathematics by copying the solution.
• To become covered with skin; grow a new skin; cicatrize: as, a wound skins over.
• To accomplish anything by irregular, underhand, or dishonest means; specifically, in college use, to employ forbidden or unfair methods or expedients in preparing for recitation or examination.
• To slip away; abscond; make off.
• To range wide, as a dog in the field.
• To take off the top layer of, as of a race-track.
• noun In anat, and zoology, the continuous covering of an animal; the cutaneous investment of the body; the integument, cutis, or derm, especially when soft and flexible, a hard or rigid skin being called a shell, test, exoskeleton, etc.
• noun The integument of an animal stripped from the body, with or without its appendages; a hide, pelt, or fur, either raw and green, or variously cured, dressed, or tanned.
• noun In museums, the outer covering of an animal, preserved for examination or exhibition with the fur, feathers, etc., but not mounted or set up in imitation of life.
• noun A water-vessel made of the whole or nearly the whole skin of a goat or other beast; a wine-skin. See cut under bottle.
• noun That which resembles skin in nature or use; the outer coat or covering of anything; especially, the exterior coating or layer of any substance when firmer or tougher than the interior; a rind or peel: as, the skin of fruit or plants; the skin (putamen) of an egg.
• noun Nautical:
• noun That part of a furled sail which is on the outside and covers the whole.
• noun The planking or iron plating which covers the ribs of a vessel on the inside; also, the thin plating on the outer side of the ribs of an armor-plated iron ship.
• noun A mean, stingy person; a skinflint.
• noun A hot punch of whisky made in the glass; a whisky-skin.
• noun = Syn. 1, 2, and Skin, Hide, Pelt. Rind, Peel, Husk, Bull. Skin is the general word for the external covering or tissue of an animal, including man, and for coatings of fruits, especially such coatings as are thin, as of apples, Hide applies especially to the skin of large domestic animals, as horses and oxen. Pelt is an untanned skin of a beast with the hair on. Rind is used somewhat generally of the bark of trees, the natural covering of fruit, etc. Peel is the skin or rind of a fruit, which is easily removable by peeling off: as, orange-peel; the peel of a banana. Husk is an easily removable integument of certain plants, especially Indian corn. A hull is generally smaller than a husk, perhaps less completely covering the fruit: as, strawberry-hulls; raspberry-hulls.
• noun In electricity, the outer layers of a conductor, which serve in the conduction of currents of high frequency.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Anat.) The external membranous integument of an animal.
• noun The hide of an animal, separated from the body, whether green, dry, or tanned; especially, that of a small animal, as a calf, sheep, or goat.
• noun A vessel made of skin, used for holding liquids. See Bottle, 1.