Ambon Syllabification: (Am·bon)Pronunciation: /ämˈbôn, ˈamˌbän/ (also Amboina /amˈboinə/)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). Ambon in other Oxford dictionaries Definition of Ambon in the British & World English dictionary