How many letters does the top answer for “a port city on the gulf of finland that is the capital and largest city of estonia” have?

The most common answer is tallinn (7 letters).

Crossword clue: a port city on the gulf of finland that is the capital and largest city of estonia

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

tallinn 7 letters wn-def

a port city on the Gulf of Finland that is the capital and largest city of Estonia