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

Read more Best high-yield savings accounts of July 2025 High-yield savings account vs. a CD: What's the difference? —Andreina Rodriguez, CNBC, 26 June 2025

There was also a recording of their voices, which Corzo captures by photographing a CD on which it’s been stored. —Jonathan Blitzer, New Yorker, 14 June 2025

The Beatles website has listed the 14-LP anthology, to be re-released July 18 (the CD version is still in stock here). —Kory Grow, Rolling Stone, 29 May 2025

This week, the track soared 44-2 after the CD launched with 498,635 copies to rule sales, while also coming in at No. 21 for downloads and No. 35 for streaming. —Billboard Japan, Billboard, 29 May 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