an ill-bred man, especially one who behaves in a dishonorable or irresponsible way toward women.
British Archaic.
a local town boy or youth, as contrasted with a university or public school student.
a servant at a university or public school.

1780–90; short for caddie (def 2)

1. bounder, rotter, rascal, rogue; heel. Unabridged


computer-aided design. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
cad (kæd)
informal, old-fashioned (Brit) a man who does not behave in a gentlemanly manner towards others
[C18: shortened from caddie]

n acronym for
computer-aided design

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

1730, shortening of cadet (q.v.); originally used of servants, then (1831) of town boys by students at British universities and public schools (though at Cambridge it meant "snob"). Meaning "person lacking in finer feelings" is from 1838.
"A cad used to be a jumped-up member of the lower classes who was guilty of behaving as if he didn't know that his lowly origin made him unfit for having sexual relationships with well-bred women." [Anthony West, "H.G. Wells: Aspects of a Life," 1984]
Online Etymology Dictionary, © 2010 Douglas Harper
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Computing Dictionary

CAD definition

Computer Aided Design

The Free On-line Dictionary of Computing, © Denis Howe 2010
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American Heritage
Abbreviations & Acronyms
  1. Canada—dollar

  2. carbohydrate addict's diet

  3. computer-aided design

  4. coronary artery disease

The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Example sentences
Unfortunately, she is already betrothed to a real cad.
Most of his fellow officers take him for a straight apple-polishing cad.
His behavior and his reason for the denial of it reveal him to be a selfish cad.
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