mission critical

Popular Terms
Activity, device, service, or system whose failure or disruption in normal business hours will result in the failure of business operations. For example, for an online business, the communication system is mission critical; for a steel mill, water and power supply have the same importance.

Use 'mission critical' in a Sentence

It is mission critical that our email servers are up and running twenty four hours a day seven days a week.
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Our point of sale system is mission critical to our business, if it goes down we cannot ring up any merchandise.
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We had a mission critical going on and everyone had to be at their best if we were going to pull through and get out of it.
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