促音便 そくおんびん Meanings Noun nasal sound change (generation of geminate consonant, primarily a geminate 't' from vowel stems ending in 'i') See also: 撥音便 (はつおんびん). Kanji 促 urge. Read as ソク. 音 sound. Read as オン. 便 mail. Read as ビン. Word lists Linguistics Jinuma: Japanese Dictionary · Word lists