Alleluia

The word "Alleluia" or "Hallelujah" (from Hebrew הללו יה), which literally means "Praise ye Yah", a short form of "Praise Yahweh" and often rendered as "praise the Lord".The form "Alleluia" is also used to refer to a liturgical chant in which that word is combined with verses of Scripture, usually from the Psalms. This chant is commonly used before the proclamation of the Gospel.
Hallelujah

Hallelujah ( HAL-i-LOO-yə) is an English interjection. It is a transliteration of the Hebrew word הַלְלוּיָהּ (Modern Hebrew haleluya, Tiberian haləlûyāh), which is composed of two elements: הַלְלוּ (second-person imperative masculine plural form of the Hebrew verb hillel: an exhortation to "praise" addressed to several people) and יָהּ (the name of God Jah or Yah).The term is used 24 times in the Hebrew Bible (in the book of Psalms), twice in deuterocanonical books, and four times in the Christian Book of Revelation.The word is used in Judaism as part of the Hallel prayers, and in Christian prayer, where since the earliest times it is used in various ways in liturgies, especially those of the Catholic Church and the Eastern Orthodox Church, both of which use the form "alleluia" which is based on the alternative Greek transliteration.

Wikipedia

Hallelujah (interjection)
An exclamation used in songs of praise or thanksgiving to God.
Hallelujah (interjection)
A general expression of gratitude or adoration.
"Hallelujah! It’s finally the weekend!"
Hallelujah (noun)
A shout of “Hallelujah”.
Hallelujah (noun)
A song of praise to God; a musical composition based on the word "Hallelujah".
"the hallelujah (chorus) in Handel's "Messiah""
Hallelujah (noun)
General praise.
Hallelujah (verb)
To cry "hallelujah" in praise.