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expressly; especially; specially; taking the trouble (to do); going to the trouble of (doing); going out of one's way (to do)
intentionally; deliberately; on purpose
わざわざ来なくてもよかったのに。
You didn't have to go out of your way to come.
わざわざ作ってくれてありがとう。
Thank you for taking the trouble to make it.
わざわざ遠くから来てくれたのに、彼は何も言わなかった。
Even though she came all the way from far away, he did not say a word.