How many letters does the top answer for “using or knowing more than one language” have?

The most common answer is multilingual (12 letters).

Crossword clue: using or knowing more than one language

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

multilingual 12 letters wn-def

using or knowing more than one language

using or knowing only one language 67% similar → monolingual

using or knowing three languages 50% similar → trilingual

using or knowing two languages 50% similar → bilingual