.dj is the country code top-level domain (ccTLD) for Djibouti.

CFL Cargo Danmark (CFLCD) is a private freight railway company in Denmark and a subsidiary of Luxembourg's CFL Cargo, owned by the national railway company of Luxembourg, Société Nationale des Chemins de Fer Luxembourgeois (CFL) and ArcelorMittal.

"DJ" is the fifth and final single from Jamelia's second album Thank You and was also released a double a-side with the Sam Brown song "Stop".

DJ most commonly refers to a disc jockey, a person who plays recorded music for an audience.

A disc jockey (abbreviated DJ, D.J. or deejay) is a person who plays recorded music for an audience, either a radio audience if the mix is broadcast or the audience in a venue such as a bar or nightclub. In venues such as a club event or rave, this is an audience of dancers. Originally, "disc" (uncommonly spelled "disque" in French or commonly "disk" in American English) referred to phonograph records, not the later compact discs. Today, the term includes all forms of music playback, no matter which medium is used (e.g. vinyl, CDs, MP3 players).