(hăl´eloo´ye) or Alleluia [Heb.,=praise the Lord], joyful expression used in Hebrew worship; cf. Pss. 104-6, 111-13, 115-17, 135, 146-50. Christian liturgies make wide use of it, particularly at Easter time. The Hallelujah Chorus is the brilliant concluding piece of Part II of Handel's Messiah.
