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Cid

1 American  
[sid, theed] / sɪd, θid /

noun

  1. The, El Cid CampeadorRodrigo Díaz de Bivar, c1040–99, Spanish soldier: hero of the wars against the Moors.

  2. (italics) Le. Le Cid.

c.i.d. 2 American  
Or cid,

abbreviation

Automotive.

  1. cubic-inch displacement: the displacement of an engine measured in cubic inches.

    My old car had a 302 c.i.d. engine.
C.I.D. 3 American  

abbreviation

  1. Criminal Investigation Department of Scotland Yard.

CID 1 British  

abbreviation

  1. (in Britain) Criminal Investigation Department; the detective division of a police force

  2. cruel, inhumane, and degrading: denoting the brutal and demeaning treatment of prisoners

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cid 2 British  
/ sɪd, θið /

noun

  1. El or the. original name Rodrigo Diaz de Vivar. ?1043–99, Spanish soldier and hero of the wars against the Moors

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of C.I.D.

First recorded in 1900–05

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.