Describing any of various products that are impregnated with a substance that releases an odour when scratched

A wooden post, wrapped in a piece of carpet (or similar material), that a domestic cat is encouraged to scratch (rather than the furniture).

Chicken feed consisting of random mixed grains such as corn, wheat, barley, sorghum and milling by-products. / (informal, idiomatic) Cramped or illegible handwriting.

plural of scratch card

(sports) A team, often brought together on a one-off basis, composed of players who normally play for different sides.

plural of scratching post

(idiomatic) To collect, assemble or gather small amounts (especially of money), from various sources, with some difficulty; to scrape together.

plural of scratch paper

Paper used for preliminary work on a (for example mathematics) problem, considered ephemeral.

To remove something by scratching. / To remove something which was written, by erasing or by putting a mark through it.