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Synonyms

cd

1 American  
  1. candela; candelas.

  2. Also cd. cord; cords.


Cd 2 American  
Symbol, Chemistry.
  1. cadmium.


CD 3 American  

abbreviation

  1. certificate of deposit.

  2. Civil Defense.

  3. Community Development.

  4. compact disk.

  5. Biology, Ecology. conservation dependent.


C/D 4 American  
Or c/d

abbreviation

  1. certificate of deposit.


c.d. 5 American  

abbreviation

  1. cash discount.


C.D. 6 American  

abbreviation

  1. certificate of deposit.

  2. Civil Defense.

  3. civil disobedience.

  4. Congressional District.


CD 1 British  

abbreviation

  1. compact disc

  2. Civil Defence (Corps)

  3. Corps Diplomatique (Diplomatic Corps)

  4. Conference on Disarmament: a United Nations standing conference, held in Geneva, to negotiate a global ban on chemical weapons

  5. Also: C.D..  (in the US and Canada) certificate of deposit

"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

Cd 2 British  

abbreviation

  1. (in Britain) command (paper)

"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

symbol

  1. cadmium

"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
cd 3 British  

abbreviation

  1. cash discount

"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

symbol

  1. candela

"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
cd 4 British  

abbreviation

  1. Democratic Republic of Congo

"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

c/d 5 British  

abbreviation

  1. carried down

"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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

As much as I honor the Sportback’s super-clean aero efficiency of 0.24 Cd, this presentation comes dangerously close to chintzy.

From The Wall Street Journal • Nov. 24, 2025

A bird flies in front of the Cd Projekt logo at its headquarters in Warsaw, Poland January 21, 2020.

From Reuters • Jul. 21, 2021

Metals that crystallize in an HCP structure include Cd, Co, Li, Mg, Na, and Zn, and metals that crystallize in a CCP structure include Ag, Al, Ca, Cu, Ni, Pb, and Pt.

From Textbooks • Feb. 14, 2019

Which of the following atoms would be expected to form negative ions in binary ionic compounds and which would be expected to form positive ions: Br, Ca, Na, N, F, Al, Sn, S, Cd?

From Textbooks • Feb. 14, 2019

Cd you procure and send me one by B.? What was described to me was of a very sacred character; 5 cords, each with 5 knots, in memory of ye 5 wounds of our Lord….

From Memoirs of James Robert Hope-Scott, Volume 2 by Ornsby, Robert

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