Definition of swap noun from the Oxford Advanced Learner's Dictionary

     

    swap

     noun
    (also swop)noun
    BrE BrE//swɒp//
     
    ; NAmE NAmE//swɑːp//
     
     
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  1. 1[usually singular] an act of exchanging one thing or person for another Let's do a swap. You work Friday night and I'll do Saturday.
  2. 2a thing or person that has been exchanged for another Most of my football stickers are swaps.
  3. Word Origin Middle English (originally in the sense ‘throw forcibly’): probably imitative of a resounding blow. Current senses have arisen from an early use meaning ‘strike hands as a token of agreement’.Extra examples Let’s do a straight swap—your guitar for my bike. The football managers agreed on swap deals involving their star players. a spy swap made between East and West Germany Let’s do a swap. You work Friday night and I’ll do Saturday. Why not arrange a job swap with someone in another city or state?
See the Oxford Advanced American Dictionary entry: swap