Meaning of “set sb back (sth)” - Learner’s Dictionary

set sb back (sth)

informal phrasal verb with set us uk /set/ verb present participle setting, past tense and past participle set

to cost someone a large amount of money:

A car like that will probably set you back about £12,000.

(Definition of “set sb back (sth)” from the Cambridge Learner’s Dictionary © Cambridge University Press)