How many letters does the top answer for “the activity of putting or setting in order in advance of some act or purpose” have?

The most common answer is preparation (11 letters).

Crossword clue: the activity of putting or setting in order in advance of some act or purpose

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

preparation 11 letters wn-def

the activity of putting or setting in order in advance of some act or purpose

readying 8 letters wn-def

the activity of putting or setting in order in advance of some act or purpose