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

Swift's website was then updated with the option to pre-order the record on vinyl, cassette and CD. — Doha Madani, NBC news, 13 Aug. 2025

But with the interest-earning potential here robust and your principal protected, a CD account of this size may have a role in your broader savings strategy, both now and in the months and years ahead. — Matt Richardson, CBS News, 1 July 2026

In 2024, the icon wrote a poem for the CD version of Swift’s eleventh studio album The Tortured Poets Department. — Maya Georgi, Rolling Stone, 27 June 2026

The track had been available digitally since May 7, but soared on the tally after the CD version dropped July 23 and sold 505,909 copies in its first week. — Billboard Japan, Billboard, 4 Aug. 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