誤 (Kanji for mistake)

Onyomi

GO	You can make FIVE (五) mistakes, but then you are fired.

It's a mistake to say that the Wu Tang is something to fuck wit.

あやま*る	to make a mistake- Basically this is a more formal version of 間違える! Used by older folks instead of 間違える, but you can use it if you're talking about a miscalculation or if you took the wrong course of action/ a failed policy. F ★★★★☆
あやま＊り	a mistake F ★★★☆☆

誤解(ごかい) する

misunderstanding ★★★★☆
誤 (mistake) + 解 (solve / untie) = 誤解 (misunderstanding)

a misunderstanding- often used about situations (a la TV sitcoms) or when you misread someone's feelings.

誤字(ごじ)

tpo ★☆☆☆☆
誤 (mistake) + 字 (letter) = 誤字 (tpo)

a typo