違(ちが)えるto change, to alter, to mistake, to make a mistake, to fail to keep (e.g. one's promise), to dislocate (e.g. one's neck)

約束(やくそく)を違(ちが)えたことを謝(あやま)る。

I apologize for failing to keep my promise. {to change, to alter, to mistake, to make a mistake, to fail to keep (e.g. one's promise), to dislocate (e.g. one's neck)}

字(じ)を違(ちが)えて書(か)いたので、消(け)しゴムで消(け)しました。

I made a mistake in writing the character, so I erased it with an eraser. {to change, to alter, to mistake, to make a mistake, to fail to keep (e.g. one's promise), to dislocate (e.g. one's neck)}

最初(さいしょ)の予定(よてい)と進路(しんろ)を違(ちが)えたら先生(せんせい)に理由(りゆう)を問(と)い詰(つ)められた。

When I deviated from the initial plan and course, the teacher questioned me about the reason. {to change, to alter, to mistake, to make a mistake, to fail to keep (e.g. one's promise), to dislocate (e.g. one's neck)}

首筋(くびすじ)を違(ちが)えたことにかこつけて、妻(つま)は今週(こんしゅう)一切(いっさい)家事(かじ)をしていません。

Using her strained neck as an excuse, my wife hasn't done any housework at all this week. {to change, to alter, to mistake, to make a mistake, to fail to keep (e.g. one's promise), to dislocate (e.g. one's neck)}

電車(でんしゃ)での通勤(つうきん)歴(れき)が長(なが)い私(わたし)に言(い)わせると、乗(の)る電車(でんしゃ)を違(ちが)える時(とき)は相当(そうとう)疲(つか)れています。

Speaking as someone with a long history of commuting by train, I feel considerably tired when I have to change the train I ride. {to change, to alter, to mistake, to make a mistake, to fail to keep (e.g. one's promise), to dislocate (e.g. one's neck)}