How many letters does the top answer for “the act of deactivating or making ineffective (as a bomb)” have?

The most common answer is deactivation (12 letters).

Crossword clue: the act of deactivating or making ineffective (as a bomb)

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

deactivation 12 letters wn-def

the act of deactivating or making ineffective (as a bomb)

defusing 8 letters wn-def

the act of deactivating or making ineffective (as a bomb)