Advance ㄷ at once in Korean: 단번에’s meaning and pronunciation at once in Korean is 단번에. For examples, you can use like [단번에 거절하다, 단번에 결정하다]. In this post you will learn how to pronounce and use at once in Korean along with examples. 2022.12.21 Advance ㄷAdvanced WordsWordsㄷ