AmbonPronunciation: /amˈbɒn/ (also Amboina /-ˈbɔɪnə/)Definition of Ambon a mountainous island in eastern Indonesia, one of the Molucca Islands. a port on the island of Ambon, the capital of the Molucca Islands; population 204,200 (est. 2005). Derivatives Ambonese (also Amboinese) noun & adjective Ambon in other Oxford dictionaries Definition of Ambon in the US English dictionary