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

New venue opening in Broad Ripple Indy CD & Vinyl will soon launch an all-ages venue, bringing back live music to the longtime record store. —Domenica Bongiovanni, IndyStar, 8 Oct. 2025

The Canadian band today also announced Rush 50, a 50-track anthology available in five distinct configurations, including the Super Deluxe Edition, Rush Store Exclusive Super Deluxe Edition, seven-LP Deluxe Edition, four-CD Deluxe Edition and Digital Edition. —Greg Evans, Deadline, 6 Oct. 2025

The record will also be available in CD and cassette formats. —Jack Dunn, Variety, 2 Oct. 2025

The project also made its official debut on CD, streaming services and as a digital download through Rhino, alongside a number of vinyl variants. —Keith Caulfield, Billboard, 1 Oct. 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