CD
/ˌsiːˈdiː/
Proposed by a contributor, not yet supported by evidence.
Also seen as: CDs
Sense 1
Meaning · English
Initialism of compact disc. — An album; a collection of musical recordings (or, occasionally, other audio such as spoken word).
NounRegister: dated
Examples
Mariah Carey's new CD has some R'n'B influences.
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Sense 2
Meaning · English
a type of giant elliptical galaxy
Noun
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Common questions
What does “CD” mean?
Initialism of compact disc. — An album; a collection of musical recordings (or, occasionally, other audio such as spoken word).
Is “CD” formal or informal?
CD is generally dated.