a matter of life and death

noun phrase

Definition of a matter of life and death

: something that is extremely important and often involves decisions that will determine whether someone lives or dies Being prepared for severe weather can be a matter of life and death.

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“A matter of life and death.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/a%20matter%20of%20life%20and%20death. Accessed 30 Oct. 2020.

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