What does ううん mean?
ううん is a Japanese interjection meaning “no (casual)” or “uh-uh” in English. It can also be translated as “um” or “er” depending on context. It is written as ううん in hiragana, and uun in romaji. This word is part of JLPT N5 vocabulary.
NoteNot to be confused with うん, which means "yes".
Example sentences
ううん、大丈夫だよ。
No, I'm fine.
ううん、違うよ。
Uh-uh, that's not right.