Here are some useful phrases and vocabulary for the New Year.
* Happy New Year --- Akemashite omedetou (informal)
Akemashite omedetou gozaimasu (formal)
* New Year's Eve --- oomisoka
* New Year's Day --- gantan
* First shrine visit of the year --- hatsumoude
* First sunrise of the year --- hatsuhinode
* First dream of the year --- hatsuyume
You can also check out some articles related to the Japanese New Year.