Meaning of “cast-off” - Learner’s Dictionary

cast-off

noun [ C ] uk us /ˈkɑːstɒf/

a piece of clothing or other item that you give to someone because you do not want it any more:

[ usually plural ] This dress is another of my sister's cast-offs.

(Definition of “cast-off noun” from the Cambridge Learner’s Dictionary © Cambridge University Press)