A particularly stealthy burglar, especially one who gains undetected entry through the use of agility.

(informal, endearing) A cat; a pussy. / (informal) A gentle or soft-hearted person. / The silky catkin of various willows. / (dated) A sexy woman.

(slang, originally) A rich person who contributes to a political campaign. / (slang, derogatory) Any affluent person who is perceived to have profited from the labour of others.

(idiomatic, in similes) To attempt to control the uncontrollable. / Used other than figuratively or idiomatically: see herd, cat.

(physics) A superposition of the most extreme states possible in a system, analogous with Schrödinger's cat, which is in a superposition of "dead" and "alive".

Small hinged panel, usually cut into a door, with an opening just big enough for a cat to enter.

A North American carnivorous mammal (Martes pennanti) of the weasel family.

A small wild cat, Felis margarita, distributed over African and Asian deserts.

Alternative form of tomcat

a domestic cat whose fur has black, brown and yellow markings