cd

1 of 5

abbreviation (1)

1

candela

2

candle

3

cord

Cd

2 of 5

symbol

cadmium

CD

3 of 5

noun (1)

ˌsē-ˈdē 

: certificate of deposit

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

Noun

In 2021 Apple Music started offering lossless CD quality and high-resolution streaming to all subscribers at no additional charge. —Nina Corcoran, Pitchfork, 10 Sep. 2025

Users can also add the FiiO DM13 CD player and SP5 speakers to build a full hi-fi system. —Mark Sparrow, Forbes.com, 9 Sep. 2025

Barcelona’s thrashing of Alhama was the match with the most interventions (12) and the only game in which there were no challenges was Athletic Club’s goalless draw with CD Tenerife. —Laia Cervelló Herrero, New York Times, 6 Sep. 2025

Cardi has taken advantage of the buzz and decided to use the memes as an alternative cover to the CD edition of her upcoming project, which is currently available on her website for $10. —Taylor Ardrey, USA Today, 3 Sep. 2025

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

Phrases Containing cd

• CD-ROM

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