cd

1 of 5

abbreviation (1)

1
candela
2
candle
3
cord

Cd

2 of 5

symbol

cadmium

CD

4 of 5

noun (2)

: a small optical disk usually containing recorded music or computer data
also : the content (such as music or a computer program) of a CD released as a unit
promoting her latest CD

CD

5 of 5

abbreviation (2)

1
carried down
2
civil defense
3
[French corps diplomatique] diplomatic corps

Examples of cd in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
Qobuz now offers 100 million tracks in lossless formats such as CD, hi-res (up to 24-bit/192kHz), DXD and DSD. Benny Har-Even, Forbes.com, 31 May 2026 And, with a money market account specifically, savers will even be able to write checks as needed, which can help streamline their banking needs in a way that a CD or high-yield savings account can't. Matt Richardson, CBS News, 28 May 2026 Five decades after the LP initially came out, the two officially released the album on streaming services, CD and vinyl. Andrea Wurzburger, PEOPLE, 26 May 2026 Continuous Detection, Continuous Response As An Alternative CD/CR proposes a different architecture. K.h. Koehler, USA Today, 18 May 2026 See All Example Sentences for cd

Word History

Etymology

Noun (2)

compact disc

First Known Use

Noun (1)

1866, in the meaning defined above

Noun (2)

1979, in the meaning defined above

Time Traveler
The first known use of cd was in 1866

Browse Nearby Words

Cite this Entry

“Cd.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cd. Accessed 1 Jun. 2026.

Kids Definition

CD

noun
ˌsē-dē
: a small plastic disk on which information (as music or computer data) is recorded digitally and read by using a laser

Medical Definition

cd

1 of 3 abbreviation
candela

Cd

2 of 3 symbol
cadmium

CD

3 of 3 abbreviation
1
cluster of differentiation
used with a number to denote any of numerous antigenic proteins found chiefly on the surface of white blood cells (such as T cells or B cells)
see cd4, cd8
2
communicable disease
3
constant drainage
4
contagious disease
5
convulsive disorder
6
curative dose

Legal Definition

CD

abbreviation
certificate of deposit

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