swap

[swop]
verb (used with object), swapped, swapping.
1.
to exchange, barter, or trade, as one thing for another: He swapped his wrist watch for the radio.
verb (used without object), swapped, swapping.
2.
to make an exchange.
noun
3.
an exchange: He got the radio in a swap.
Also, swop.


Origin:
1300–50; Middle English swappen to strike, strike hands (in bargaining); cognate with dialectal German schwappen to box (the ears)

swapper, noun
unswapped, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
swap or swop (swɒp)
 
vb , swaps, swapping, swapped, swops, swopping, swopped
1.  to trade or exchange (something or someone) for another
 
n
2.  an exchange
3.  something that is exchanged
4.  finance swap option, Also called: swaption a contract in which the parties to it exchange liabilities on outstanding debts, often exchanging fixed interest-rate for floating-rate debts (debt swap), either as a means of managing debt or in trading (swap trading)
 
[C14 (in the sense: to shake hands on a bargain, strike): probably of imitative origin]
 
swop or swop
 
vb
 
n
 
[C14 (in the sense: to shake hands on a bargain, strike): probably of imitative origin]
 
'swapper or swop
 
n
 
'swopper or swop
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

swap
c.1300, "to strike, strike the hands together," possibly imitative of the sound of hitting. The sense of "exchange, barter, trade" is first recorded 1594, possibly from the practice of slapping hands together as a sign of agreement in bargaining. The noun in this sense is attested from 1625.
Online Etymology Dictionary, © 2010 Douglas Harper
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FOLDOC
Computing Dictionary

swapping definition


swap

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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American Heritage
Abbreviations & Acronyms
SWAP
severe weather avoidance procedures
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Example sentences
Imagine dropping your entire photo collection down the drain when swapping out
  cards from the camera.
Case further illustrates the complexity of gender swapping as a vehicle for
  self-reflection.
House swapping is a way to make travel much more affordable.
They're soon swapping fours as they scat, and they've got every bit the
  chemistry they did on the show.
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