はつおんびん 撥音便 LinksSentence search for 撥音便Sentence search for はつおんびんKanji details for 撥, 音 and 便Edit in JMdict Noun1. nasal sound change (generation of the mora 'n', primarily from verb stems ending in 'i')Linguistics, See also 促音便 Discussions Log in to talk about this word.