In Japanese, you can say "Akemashite Omedetou Gozaimasu" to wish someone a happy new year. This phrase is typically used to greet friends, family, and acquaintances during the New Year holiday season. It can be translated as "I wish you a happy new year."
Here are a few other phrases that you can use to wish someone a happy new year in Japanese:
"Shin nen kotoshi mo yoroshiku onegaishimasu" - This means "I hope we can work together again this year."
"Ganbatte kudasai" - This means "Please do your best."
"Ichigo ichie ni shinnen o inoru" - This means "I pray for a happy new year, one and only."
"Akemashite omedetou gozaimasu. Arigatou gozaimasu" - This means "Happy New Year. Thank you."
I hope these phrases are helpful, and I wish you a happy and prosperous new year!
