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a. A small domesticated carnivorous mammal (Felis catus), kept as a pet and as catcher of vermin, and existing in a variety of breeds.
b. Any of various other carnivorous mammals of the family Felidae, including the lion, tiger, leopard, and lynx.
2. Informal A woman who is regarded as spiteful.
3. Slang
a. A person, especially a man.
b. A player or devotee of jazz music.
4. A cat-o'-nine-tails.
5. A catfish.
6. Nautical
a. A cathead.
b. A device for raising an anchor to the cathead.
c. A catboat.
d. A catamaran.
v. cat·ted, cat·ting, cats Nautical
To hoist an anchor to (the cathead).
v.intr. Slang
To look for sexual partners; have an affair or affairs: "catting around with every lady in sight" (Gore Vidal).
let the cat out of the bag
To let a secret be known.

[Middle English, from Old English catt, from Germanic *kattuz; akin to Late Latin cattus and Old Church Slavonic kotŭka, all ultimately of unknown origin. Sense 6d, short for catamaran.]


1. clear-air turbulence
2. computerized axial tomography
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


n acronym for
(Education) credit accumulation transfer scheme: a scheme enabling school-leavers and others to acquire transferable certificates for relevant work experience and study towards a recognized qualification
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


See also animals.

an abnormal love of cats.
a lover of cats. Also called felinophile, philofelist, philogalist.
an abnormal fear of cats. Also called felinophobia.
an excessive fondness for cats.
an abnormal fear of cats.
1. a cat, particularly an old female cat.
2. a bad-tempered old woman.
British dialect, the young of an animal, especially a kitten or young cat.
British dialect, a cat or hare. Also spelled mawkin.
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.