Hosanna (hōzănˈə) [key] [Heb., = save now; Psalm 118], an intensified imperative, a cry, addressed to God, particularly used in the Feast of Tabernacles, when prayers for rain were offered. In the New Testament the crowd shouted it when Jesus entered Jerusalem on Palm Sunday. It is used as an acclamation in Christian worship, e.g., in the Sanctus.
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