How many letters does the top answer for “any igniter that is used to initiate the burning of a propellant” have?

The most common answer is fusee (5 letters).

Crossword clue: any igniter that is used to initiate the burning of a propellant

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

fusee 5 letters wn-def

any igniter that is used to initiate the burning of a propellant

fuze 4 letters wn-def

any igniter that is used to initiate the burning of a propellant

fuzee 5 letters wn-def

any igniter that is used to initiate the burning of a propellant