Synonyms for Rosh Hashonah (same or very similar meaning)
WordNet sense 1 ((Judaism) a solemn Jewish feast day celebrated on the 1st or 1st and 2nd of Tishri; noted for the blowing of the shofar):
Rosh Hashanah, Jewish New Year, Rosh Hashana, Rosh Hashona
From the ODE community, based on WordNet
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