A diminutive of the female given names Catherine or Caitlin.

(slang) A piece of heavy machinery, such as a backhoe, of the Caterpillar brand.

(informal) A Catalina flying boat.

A domesticated species of feline animal commonly kept as a house pet, or any similar animal of the family felidae.

(uncountable) The meat of this animal, eaten as food.

A person who is an enthusiast or player of jazz, or a person (usually male) in slang.

(nautical) A strong tackle used to hoist an anchor to the cathead of a ship.

(chiefly nautical) Short for cat-o'-nine-tails.

(slang, vulgar, African-American Vernacular) A vagina, a vulva; the female external genitalia.

A double tripod (for holding a plate, etc.) with six feet, of which three rest on the ground, in whatever position it is placed.

(historical) A wheeled shelter, used in the Middle Ages as a siege weapon to allow assailants to approach enemy defences.

(computing) A program and command in Unix that reads one or more files and directs their content to the standard output.

Abbreviation of catapult.

Abbreviation of catalytic converter.

Abbreviation of catamaran.

Abbreviation of category.

Abbreviation of catfish.

An abbreviation of caterpillar and can refer to a variety of earth-moving machines or ground vehicles that use caterpillar tracks.

Abbreviation of computed axial tomography. Often used attributively, as in “CAT scan” or “CT scan”.

(nautical, transitive) To hoist (the anchor) by its ring so that it hangs at the cathead.

(nautical, transitive) To flog with a cat-o'-nine-tails.

(slang) To vomit.

To go wandering at night.

To gossip in a catty manner.

(computing, transitive) To apply the cat command to (one or more files).

(computing, slang) To dump large amounts of data on (an unprepared target), usually with no intention of browsing it carefully.

(Ireland, colloquial) Catastrophic; terrible, disastrous.