Initialism of compact disc; a disc once commonly used to store data, and especially for the distribution of music and software.

To cross-dress.

plural of CD

(finance) Initialism of credit default swap. / (linguistics) Initialism of child-directed speech: a simplified form of speech used by adults when talking to infants

(astronomy) a type of giant elliptical galaxy

plural of no-CD

(computing, video games, informal) A software crack for a program that usually requires the presence of the original compact disc (to prove that it is a legally-acquired copy), allowing it to run without the disc.

plural of cD

plural of CD-i

plural of CD-I