ChamPronunciation: /tʃam/Definition of Cham noun (plural same or Chams) 1a member of an indigenous people of Vietnam and Cambodia, who formed an independent kingdom from the 2nd to 17th centuries ad. 2 [mass noun] the Austronesian language of the Cham, with about 230,000 speakers. adjective relating to the Cham, their culture, or their language. Cham in other Oxford dictionaries Definition of Cham in the US English dictionary