はっか 発火 Common word LinksSentence search for 発火Sentence search for はっかKanji details for 発 and 火Edit in JMdict Noun, Suru verb, Intransitive verb1. ignition; combustion; catching fireNoun, Suru verb, Intransitive verb2. firing a blank cartridge; discharge of a gun without bullets Discussions Log in to talk about this word.