How many letters does the top answer for “the act or operation of levigating.” have?

The most common answer is levigation (10 letters).

Crossword clue: the act or operation of levigating.

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

levigation 10 letters web-def

The act or operation of levigating.

the act of setting in operation 50% similar → startup

the act or operation of cleansing. 50% similar → mundification

the act or operation of systematizing. 50% similar → systematization