scratch (Noun) — An abraded area where the skin is torn or worn off.
scratch (Noun) — A depression scratched or carved into a surface.
scratch (Noun) — Informal term for money.
scratch (Noun) — A competitor who has withdrawn from competition.
scratch (Noun) — A line indicating the location of the start of a race or a game.
scratch (Noun) — Dry mash for poultry.
scratch (Noun) — A harsh noise made by scraping.
scratch (Noun) — Poor handwriting.
scratch (Noun) — (golf) a handicap of zero strokes. ex. "a golfer who plays at scratch should be able to achieve par on a course"
scratch (Noun) — An indication of damage.
scratch (Verb) — Cause friction. ex. "my sweater scratches"
scratch (Verb) — Cut the surface of; wear away the surface of.
scratch (Verb) — Scrape with the fingers as if to relieve itching. ex. "Don't scratch your insect bites!"
scratch (Verb) — Postpone indefinitely or annul something that was scheduled. ex. "scratch that meeting--the chair is ill"
scratch (Verb) — Remove by erasing or crossing out or as if by drawing a line. ex. "scratch that remark"
scratch (Verb) — Gather (money or other resources) together over time. ex. "they scratched a meagre living"
scratch (Verb) — Carve, cut, or etch into a material or surface. ex. "the lovers scratched their names into the bark of the tree"
scratch (Adjective) — Put together quickly from whatever is available.
scratch (Adjective) — (computing) for testing or temporary use. ex. "store the values in a scratch file"