Meaning of OFF in English

OFF

prep. from; up from; so as to get out or come out of (bus, train, etc.); reduced by (e.g.: "This week all the shirts are 10% off"); so as to get rid of or remove something (i.e.: "The stain will come off your dress")

Explanatory English dictionary bed edition.      Толковый словарь английского языка Редакция bed.