'DJ' definitions:

Definition of 'dj'

From: WordNet
noun
A person who announces and plays popular recorded music [syn: disk jockey, disc jockey, dj]
verb
Comment on music to be played; "He has a job disk-jockeying on the weekend" [syn: disk-jockey, disc-jockey, DJ]

Definition of 'DJ'

From: GCIDE
  • DJ \DJ\ (d[=e]"j[=a]`) n. same as disc jockey. [acronym, capitalized] [PJC] Djereed