The definition of Adonai is the title that Hebrews use for God in prayer.
Exodus 6 is an example of a passage that uses the word Adonai.
God; Lord: used in Hebrew reading as a substitute for the “ineffable name” JHVH
Origin of AdonaiHeb, my Lord from northwestern Semitic Ad?n, Adun, lord; uncertain or unknown; perhaps akin to Arabic ??dhn, command
Lord. Used in Judaism as a spoken substitute for the ineffable name of God.
Origin of AdonaiHebrew 'ădônāy my lord 'ādôn lord ℵd -ay my -y