How many letters does the top answer for “another word for mistake” have?

The most common answer is error (5 letters).

Crossword clue: another word for mistake

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

error 5 letters gen-syn

a wrong action attributable to bad judgment or ignorance or inattention

fault 5 letters gen-syn

a wrong action attributable to bad judgment or ignorance or inattention

misidentify 11 letters gen-syn

identify incorrectly

another word for about 50% similar → approximately, roughly, some

another word for terms 50% similar → footing

another word for under 50% similar → nether

another word for word 50% similar → phrase

mistake one thing for another 50% similar → confuse