unsubscribe

/AH0 N S AH0 B S K R AY1 B/
noun
  1. 1

    An unsubscription.

verb
  1. 1

    To cancel a subscription, especially to an online service.

    โ€œHow do I unsubscribe from your mailing list?โ€

Source: https://en.wiktionary.org/wiki/unsubscribe