Definition of 違う
- (v5u, vi) to differ (from); to vary
その点では私は君と意見が違う。
I differ from you on that point. - to not be in the usual condition
そんなばかなことを言うなんて彼は気でも違ったのか。
Is he mad that he should say such a foolish thing? - to not match the correct (answer, etc.)
君は違う方にいきますよ。
You're going the wrong way. - to be different from promised