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English definition of “swap”

swap

verb [I or T] uk (-pp-) (UK also swop (-pp-))   /swɒp/ us    /swɑːp/
C1 to give something and be given something else instead: When you've finished reading your book, and I've finished mine, can we swap? We swapped addresses with the people we met on holiday. When he got a job in a bank, he had to swap his jeans and T-shirt for a suit (= he had to wear formal clothes instead of informal ones). [+ two objects] I'll swap you my chocolate bar for your peanuts. We spent the evening in the pub, swapping (= telling each other) stories/jokes.
Synonym
Replacing and exchanging

swap

noun [C] uk (UK also swop)   /swɒp/ us    /swɑːp/
an exchange, or something that is going to be or has been exchanged: I thought Simon's food looked nicer than mine, so we did a swap. This comic is a swap (= something that was exchanged) that I got from Nick.Replacing and exchanging
(Definition of swap from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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