How many letters does the top answer for “the act of becoming red; redness of the skin or surface of anything; a blushing.” have?

The most common answer is erubescence (11 letters).

Crossword clue: the act of becoming red; redness of the skin or surface of anything; a blushing.

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

erubescence 11 letters web-def

The act of becoming red; redness of the skin or surface of anything; a blushing.

erubescency 11 letters web-def

The act of becoming red; redness of the skin or surface of anything; a blushing.