うん Common word JLPT N4 LinksSentence search for うんSentence search for うむSentence search for ううむEdit in JMdict 1. yes; yeah; uh huh2. hum; hmmm; well; erm; huh?う～む、そうぼう相貌からはんだん判断するにシャンハイ上海からか。Hrmmm, to judge from their looks they might be from Shanghai.3. oofOnly applies to うん, moan or groan (of pain)Other formsうむ、ううむ Discussions Log in to talk about this word.