ごうはつ 轟発 LinksSentence search for 轟発Sentence search for ごうはつKanji details for 轟 and 発Edit in JMdict Noun, Suru verb, Intransitive verb1. loud explosion; thunderous blastRare termNoun, Suru verb, Transitive verb2. firing (a cannon, etc.) with a loud bangRare term Discussions Log in to talk about this word.