Bible Dictionaries
Alpha

Watson's Biblical & Theological Dictionary

the first letter of the Greek alphabet; Omega being the last letter. Hence Alpha and Omega is a title which Christ appropriates to himself, Revelation 1:8; Revelation 21:6; Revelation 22:13; as signifying the beginning and the end, the first and the last, and thus properly denoting his perfection and eternity.

Bibliography Information
Watson, Richard. Entry for 'Alpha'. Richard Watson's Biblical & Theological Dictionary. https://www.studylight.org/​dictionaries/​eng/​wtd/​a/alpha.html. 1831-2.