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English definition of “DID”


noun [U] (UK also DDI)    
COMMUNICATIONS abbreviation for Direct Inward Dial or Direct Inward Dialing : a system that allows a phone line to be connected to more than one number , so that employees or departments in an organization can have different numbers without each needing a separate phone line : With DID the telephone company can allocate a range of numbers associated with one or more phone lines .
(Definition of DID noun from the Cambridge Business English Dictionary © Cambridge University Press)
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