(transitive, intransitive) To play a trump card to a trick when unable to follow suit (that is, when unable to play a card of the same suit as the previous or leading card).

(colloquial) Alternative spelling of rough.

An instance of ruffing, or an opportunity to ruff, when unable to follow suit. / (obsolete) A game similar to whist and its predecessor.

(transitive) To shape (fabric, etc.) into a ruff; to adorn (a garment, etc.) with a ruff. / (transitive, falconry) Of a falcon, hawk, etc.: to hit (the prey) without fixing or grabbing hold of it.

A circular frill or ruffle on a garment, especially a starched, fluted frill at the neck in Elizabethan and Jacobean England (1560s–1620s). / Anything formed with plaits or flutings like a frill.

(music, often military) A low, vibrating beat of a drum, quieter than a roll; a ruffle.

Alternative spelling of ruffe: a small freshwater fish of the genus Gymnocephalus; specifically the Eurasian ruffe (Gymnocephalus cernua or Gymnocephalus cernuus) which has spiny fins; the pope.

The bark of a dog; arf, woof.

(transitive) To beat a ruff or ruffle, as on a drum. / (intransitive) Of a drum, etc.: to have a ruff or ruffle beaten on it.

Gymnocephalus cernua, a small Eurasian freshwater fish. / Other species in the same genus.