D defs.my
Entry 1 sense Webster, 1913

sign off

/(sīn` a̤f")/ · sign· off · IPA
01 v. i. To terminate a communication, especially one conducted by radio waves; to terminate a broadcast over radio or television; as, this is your …
  1. 1.
    To terminate a communication, especially one conducted by radio waves; to terminate a broadcast over radio or television; as, this is your reporter in Cairo, signing off.