Wiederholung

noun
  1. The act of repeating something that has already been said or done. noun
    The teacher asked for a Wiederholung of the exercise to ensure everyone understood.
    In music, a Wiederholung of the chorus can make the song more memorable.
  2. A repeated performance or broadcast, especially in the context of television or radio. noun
    The Wiederholung of last night's episode will be aired tomorrow.
    Fans eagerly awaited the Wiederholung of the concert on the radio.