{ } n. & interj. [ Heb. See Alleluia. ] Praise ye Jehovah; praise ye the Lord; -- an exclamation used chiefly in songs of praise or thanksgiving to God, and as an expression of gratitude or adoration. Rev. xix. 1 (Rev. Ver. ) [ 1913 Webster ]

So sung they, and the empyrean rung
With Hallelujahs. Milton. [ 1913 Webster ]

In those days, as St. Jerome tells us, “any one as he walked in the fields, might hear the plowman at his hallelujahs.” Sharp. [ 1913 Webster ]

a. Pertaining to, or containing, hallelujahs. [ R. ] [ 1913 Webster ]