Definition of "sign off" [sign off]

• Term used to describe the closing of a radio or television station's studios and cessation of a broadcasting signal, usually during the overnight hours. (noun)
• To log off; to stop using a computer, radio, etc., especially to stop talking. (verb)
• To cease broadcasting a radio or television signal, usually at the end of a broadcasting day. (verb)
• To give one's official approval to something for which it is needed (verb)

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• "At our meeting on Friday afternoon, Gabriel Wycoming had a question regarding the aviation industry experts we you have been interviewing and evidently, you decided to sign off from the call without telling anyone."
• "Martin Hillenbrand, who from his vantage point at States German desk saw frequent confusion at the White House, noted that the situation was often saved by the extraordinary ability of McGeorge Bundy to synthesize cabinet room discussions, and to get the president to sign off on skillfully drafted action memorandums."
• "All you had to do was get the sheriff to sign off on the Raufoss."