/hal'euh looh"yeuh/ , interj.
1. Praise ye the Lord!
n.
2. an exclamation of "hallelujah!"
3. a shout of joy, praise, or gratitude.
4. a musical composition wholly or principally based upon the word "hallelujah."
Also, halleluiah .
[ 1525-35; halaluyah praise ye Yahweh; cf. ALLELUIA ]