Definitions for "Tetragrammaton"
Keywords:  yhwh, yahweh, hebrew, jhvh, yhvh
The mystic number four, which was often symbolized to represent the Deity, whose name was expressed by four letters among some ancient nations; as, the Hebrew JeHoVaH, Greek qeo`s, Latin deus, etc.
the four-letter, unutterable, divine name of God (often transliterated in English as "YHWH").
The most powerful Name of God, YHVH. Its pronunciation has been lost. This Name, and permutations of it, is often used in meditations, amulets, and prayer.