How many letters does the top answer for “act in a vulgar manner” have?

The most common answer is vulgarise (9 letters).

Crossword clue: act in a vulgar manner

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

vulgarise 9 letters wn-def

act in a vulgar manner

vulgarize 9 letters wn-def

act in a vulgar manner

in a vulgar manner. 67% similar → vulgarly