to return, give back, repay, to restore, bring back
Я не знаю, когда смогу вернуть тебе долг.
I don't know when I'll be able to pay you back.
Don't you want to return them?
I’ll ask for my suitcase back.
— Ivan Vasilyevich Changes His Profession (1973)
Я должен вернуть книгу до субботы.
I have to return the book by Saturday.