How many letters does the top answer for “city in rio de janeiro” have?

The most common answer is greaterriodejaneiro (19 letters).

Crossword clue: city in rio de janeiro

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

greaterriodejaneiro 19 letters wd-fact-v3

landmark in rio de janeiro 60% similar → deodoroaquaticscentre, deodorostadium, petrobras

university in rio de janeiro 60% similar → museunacional

sports venue in rio de janeiro 50% similar → barraolympicpark, barravelodrome, marinadagloria