backup - definition and synonyms


Your browser doesn’t support HTML5 audio

  1. 1
    [countable/uncountable] people or equipment that can be used when extra help is needed

    I’ve got my mother as a backup in case the babysitter cancels.

    They realized that Sykes was armed, and radioed for backup.

    a backup generator/crew

     Synonyms and related words
  2. 3
    [uncountable] music mainly American music that is played or sung to add to the main singer’s voice

    Her sister goes on tour with her and sings backup.

    a backup vocalist