The catch-all greeting you can use for the entire season is “Shanah tovah” (שנה טובה), which means “Good year.” The word “u’metuka” (ומתוקה), and sweet, is sometimes appended to the end.
SHANA' TOVA'
High Holidays observances reminder
Rosh Hashanah is the birthday of the universe, the day G‑d created Adam and Eve, and it’s celebrated as the head of the Jewish year. It begins at sundown on the eve of Tishrei 1 (Sept. 20, 2017) and ends after nightfall on Tishrei 2 (Sept. 22, 2017).
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