the be-all and end-all

noun phrase

Definition of the be-all and end-all

: the most important part of something or the reason for something He acts as if making money is the be-all and end-all of human existence.

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“The be-all and end-all.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/the%20be-all%20and%20end-all. Accessed 26 Nov. 2020.

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