Adonai (Hebrew: אֲדֹנָי, Modern: Adonai, Tiberian: ʾĂḏōnāy) is a Hebrew term meaning "my Lords" which is the plural of Adon (אֲדֹן) and refers to the singular form. It is one of the titles used for the God of Israel. In the Hebrew Bible, "Adonai" is used in place of the Tetragrammaton (the four-lettered name of God, YHWH) out of reverence, as the name was considered too sacred to be spoken. In Jewish tradition, when reading scripture, Adonai is substituted for the Tetragrammaton. In Christian Bibles, "Adonai" is often translated as "Lord." In the Septuagint, the Greek translation of the Hebrew Bible, "Adonai" is translated as "Kyrios" (Κύριος), which also means "Lord." In Arabic, the term is translated as "Rabbī" (رَبِّي), and in Spanish, it is "Señor." The use of "Adonai" underscores the monotheistic focus of Judaism and the reverence with which the name of God is treated.