mission-critical Meaning in the Cambridge English Dictionary Cambridge dictionaries logo
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Meaning of “mission-critical” in the English Dictionary

"mission-critical" in Business English

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mission-criticaladjective

uk   us   also mission critical IT
extremely important or necessary for a company, activity, etc. to operate successfully: A small business may store all its mission-critical data on one PC. mission-critical applications/systems/software
(Definition of mission-critical from the Cambridge Business English Dictionary © Cambridge University Press)
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