someone's life depends on (something)

idiom

Definition of someone's life depends on (something)

used to say that something is very important or essentialHis life depends on how he answers this question.He was studying as if his life depended on it. often used in negative statementsI wouldn't eat that food if my life depended on it.

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“Someone's life depends on (something).” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/someone%27s%20life%20depends%20on%20%28something%29. Accessed 15 Aug. 2020.

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