促音 そくおん Meanings Noun geminate consonant (small "tsu" in Japanese) Kanji 促 urge. Read as ソク. 音 sound. Read as オン. Words containing 促音 促音便 (そくおんびん) nasal sound change (generation of geminate consonant, primarily a geminate 't' from vowel stems ending in 'i') Word lists Linguistics Jinuma: Japanese Dictionary · Word lists