ぼっぱつ 勃発 LinksSentence search for 勃発Sentence search for ぼっぱつSentence search for ぼっ発Kanji details for 勃 and 発Edit in JMdict Noun, Suru verb, Intransitive verb1. outbreak (e.g. of war); outburst; sudden occurrenceOther formsぼっ発 【ぼっぱつ】 Discussions Log in to talk about this word.