ANATP

ANATP: "Question: Why do some Jews spell God, 'G-d'?
Answer: God's name is treated with unusual care in Jewish tradition. The divine name, YHWH (spelled with the Hebrew letters yud, hey, vav, hey) is never pronounced. Traditionally, Jews read the word 'Adonai' (often translated as 'the Lord') whenever reading God's holiest name in Torah or in prayer. However, 'Adonai' is not God's name."