(ah-LAY-noo) n. Aleinu. Closing prayer of the three daily services (popular since the 13th century).

(lit., 'it is incumbent upon us'). Prayer consisting of two passages (Aleinu and V'al Kein) and a follow up paragraph (the Al Tirah) recited at the conclusion of each of the three daily prayer services (see Siddur Tehillat Hashem p.84).

Closing prayer of every synagogue service, proclaiming God's sovereignty.

first of the closing prayers of the service

(ah-LAY-noo) One of the concluding prayers of the Jewish service. Worshipers traditionally stand and bow during this prayer.

"It is Upon Us," a concluding hymn

Prayer proclaiming Godâ€(tm)s kingship, said near the conclusion of the prayer service.

Aleinu (Hebrew: , "our duty") is a Jewish prayer found in the siddur, the classical Jewish prayerbook. Traditional Jews recite it at the end of each of the three daily Jewish services.