Definition of "backed up" []

• Simple past tense and past participle of back up. (verb)

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• "This management team would be backed up by the chief executives of the joint venture partners, by appropriate legal and accounting services, and by Keiley, Goonewardene, and others."
• "This feeling was backed up when the elevator came and each floor was labeled with a name—2, CONNOR."
• "We took the Queens Midtown Tunnel to the LIE, but traffic backed up again as we approached the Van Wyck."