Hallelujah, Halleluyah, or Alleluia, is a transliteration of the Hebrew word הַלְלוּיָהּ (Standard Halləluya, Tiberian Halləlûyāh) meaning "praise (הַלְּלוּ) Yah (יָהּ)." It is found mainly in the book of Psalms and has a similar pronunciation in many, but not all, languages. The word is used in Judaism as part of the Hallel prayers, and in Christian praise. It has been accepted into the English language, but its Latin form Alleluia is used by many English-speaking Christians in preference to Hallelujah.
The term is used 24 times in the Hebrew Bible (mainly in the book of Psalms, e.g. 111-117, 145-150, where it starts and concludes a number of Psalms) and four times in Greek transliteration in the Christian Book of Revelation.