Adonai - (ad-o-noy') Lord, Master

Use in the Bible: In the Old Testament Adonai occurs 434 times. There are heavy uses of Adonai in Isaiah (e.g., Adonai Jehovah). It occurs 200 times in Ezekiel alone and appears 11 times in Daniel Chapter 9. Adonai is first used in Gen 15:2.

Variant spellings: None

TWOT Reference: 27b

Strong's Reference: 0136

Adonai in the Septuagint: kurios — Lord, Master

Meaning and Derivation: Adonai is the verbal parallel to Yahweh and Jehovah. Adonai is plural; the singular is adon. In reference to God the plural Adonai is used. When the singular adon is used, it usually refers to a human lord. Adon is used 215 times to refer to men. Occasionally in Scripture and predominantly in the Psalms, the singular adon is used to refer to God as well (cf. Exd 34:23). To avoid contravening the commandment "Thou shalt not take the name of the LORD thy God in vain" (Exd 20:7), sometimes Adonai was used as a substitute for Yahweh (YHWH). Adonai can be translated literally as, "my lords' " (both plural and possessive).

Further references of the name Adonai in the Old Testament: Complete list available here.