How do you write good luck in Japanese?

There are a few ways to say "good luck" in Japanese, depending on the context and formality:

Formal:

* 頑張ってください (ganbatte kudasai): This is the most common and polite way to say "good luck" in formal situations. It literally means "please do your best."

* お元気で (o genki de): This is a more general phrase that means "stay healthy" but can also be used to wish someone good luck in a formal setting.

Informal:

* 頑張って (ganbatte): This is a more casual way to say "good luck," often used with friends and family.

* ファイト (faito): This is a shortened version of "fighting" and is often used to encourage someone before a competition or challenge.

* うまくいくといいね (umaku iku to ii ne): This means "I hope it goes well" and is a more personal way to wish someone good luck.

Specific situations:

* 試験頑張って！ (shiken ganbatte!): This means "good luck with your exam!"

* 試合頑張って！ (shiai ganbatte!): This means "good luck with your game!"

You can choose the best phrase depending on the context and your relationship with the person you are speaking to.