interjection
An exclamation used in songs of praise or thanksgiving to God.
(by extension) A general expression of gratitude or adoration.
noun
A shout of “Hallelujah”.
(music) A song of praise to God; a musical composition based on the word "Hallelujah".
(in the plural) General praise.
verb
(intransitive) To cry "hallelujah" in praise.