mission-critical 
adjective Computing
(Of hardware or software) vital to the functioning of an organization.This is an important consideration if you are thinking about buying mission-critical software from outside your country....
- Long after the marketing campaign is done, we will still be fanatical about providing the most secure mission-critical software in the business.
- Less than half of the companies surveyed have formal procedures in place for backing up mission-critical data hosted on laptop computers.
- double acrostic
- double act
- double-acting
- double-action
- double agent
- double axe
- double back
- double-bank
- double bar
- double-barrelled
- double bass
- double bassoon
- double bill
- double bind
- double-bitted axe
- double-blind
- double bluff
- double bogey
- double boiler
- double bond
- double-book
- double-breasted
- double bridle
- double-check
- double chin