How many letters does the top answer for “the state or quality of being oily or fat; fatness. b. jonson.” have?

The most common answer is oleosity (8 letters).

Crossword clue: the state or quality of being oily or fat; fatness. b. jonson.

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

oleosity 8 letters web-def

The state or quality of being oily or fat; fatness. [R.] B. Jonson.

the state of being fat; fatness. 50% similar → adiposeness, adiposity