IPA: /swɒp/
KK: /swɑp/
To exchange one thing for another.
They decided to swop their books for a week.
Past: swopped
Past Participle: swopped
Swop originates from Old English 'swapan', meaning to exchange or to swap. The word describes the act of exchanging one thing for another.
Think of the Old English word 'swapan' which means to exchange — that's why 'swop' means to swap or trade something.