take back something
— phrasal verb with take us/teɪk/verb [ T ] past tense took /tʊk/
to receive or accept something that you previously sold, offered, or gave away:
If you’re not satisfied with your purchase, we’ll take it back and refund your money.
If you take back something you have said, you admit that it was wrong:
I said she was lying, but I take it back.