alpha and omega

American  

noun

1. the beginning and the end.

2. the basic or essential element or elements.

   the alpha and omega of political reform.

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alpha and omega British  

noun

1. the first and last, a phrase used in Revelation 1:8 to signify God's eternity

2. the basic reason or meaning; most important part

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alpha and omega ¹ Cultural  

1. The beginning and the end. In the Greek alphabet, in which the New Testament was written, alpha is the first letter and omega is the last. In the Book of Revelation, God says, “I am Alpha and Omega, the first and the last,” meaning that God remains from the beginning to the end of time.

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alpha and omega ² Cultural  

1. The beginning and the end. In the New Testament Book of Revelation, God says, “I am Alpha and Omega,” meaning that he is the beginning and end of all things. In the Greek alphabet, alpha is the first letter and omega is the last.

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alpha and omega Idioms  

1. The beginning and the end, the first and the last, as in She had to master the alpha and omega of the new computer program before she could even begin. This idiom and its meaning, based on the first and last letters of the Greek alphabet, appears in the New Testament (Revelation 1:8): “I am Alpha and Omega, the beginning and the ending, saith the Lord,” where it is repeated three more times.

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Example Sentences

They are rich with lasting insight and reasonably can be read as the alpha and omega of Trump coverage.

From Salon • Oct. 4, 2020

That was business: the first and the last, the alpha and omega.

From The Guardian • Mar. 17, 2020

And there are some people on this bench that think that that is the alpha and omega of every constitutional question.

From Slate • Dec. 6, 2018

They sat next to each other at the brunch, representing the alpha and omega of the survivors’ age range, 79 and 101.

From Washington Post • Apr. 23, 2018

This was the alpha and omega of our existence, and went unquestioned.

From "Long Walk to Freedom" by Nelson Mandela