Brunei Malay (
Bahasa Melayu Brunei), or
Kedayan (
Kadaian), sometimes conflated as
Brunei-Kadaian, is the
national language of
Brunei and a lingua franca in parts of
East Malaysia. It is not the official language of Brunei, which is
standard Malay, but is socially dominant and is replacing minority languages. It is quite divergent from standard Malay and is mostly mutually unintelligible with it.