How many letters does the top answer for “island in republic of formosa” have?

The most common answer is republicofformosa (17 letters).

Crossword clue: island in republic of formosa

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

republicofformosa 17 letters wd-fact-v3

island in dominican republic 50% similar → beataisland, catalinaisland, dominicanrepublic

island in republic of the congo 50% similar → mbamu