Crossword clue: an island in indonesia to the south of borneo; one of the world's most densely populated regions

The most common answer is java (4 letters).

1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

Possible answers

java 4 letters wn-def

an island in Indonesia to the south of Borneo; one of the world's most densely populated regions