How many letters does the top answer for “the act of sprinkling anything; a sprinkling over.” have?

The most common answer is besprinkling (12 letters).

Crossword clue: the act of sprinkling anything; a sprinkling over.

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

besprinkling 12 letters web-def

scatter with liquid; wet lightly

the act of sprinkling. chapman. 50% similar → inspersion

the act of sprinkling or scattering. 50% similar → respersion

the act of sprinkling. swift. 50% similar → spargefaction