Individual #Tetragrammaton  four Hebrew letters (usually transliterated as YHWH (Yahweh) or JHVH (Jehovah)) signifying the Hebrew name for God (which the Jews regarded as too holy to pronounce)
  type:  tetragram  a word that is written with four letters in an alphabetic writing system

No statement uses or specializes Tetragrammaton; click here to add one.