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REFERENCE

swap

v. · n.
US //ˈswɑp// UK //swˈɒp// swap
  1. 1 to exchange (v.)
    B1 Intermediate

    to give something to someone and receive something else from them.

    to exchange one thing for another; often used transitively with 'for' or 'with'.

    Example

    I swapped my sandwich for her apple because I wasn't very hungry.

    Example

    The two collectors decided to swap their duplicate stamps to help each other complete their respective albums.

    Usage

    Often used with the preposition 'for' to indicate the item received.

  2. 2 an exchange (n.)
    B1 Intermediate

    an act of giving one thing and receiving another.

    the act of exchanging two comparable things or people.

    Example

    We did a quick swap of seats so that he could sit next to the window.

    Example

    The manager suggested a personnel swap between the marketing and sales departments to encourage fresh perspectives.

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  1. 3 financial contract (n.)
    C1 Advanced Technical Finance

    a special agreement between two companies to trade different types of payments.

    a derivative contract through which two parties exchange the cash flows or liabilities from two different financial instruments.

    Example

    The company entered into an interest rate swap to lower its borrowing costs.

    Example

    Institutional investors often use currency swaps to hedge against potential fluctuations in foreign exchange rates.

  2. 4 computing memory (n.)
    C1 Advanced Technical Computing

    space on a computer's hard drive used as extra memory when the main memory is full.

    the use of a hard disk as virtual memory to store data that cannot fit in the physical RAM.

    Example

    The computer slowed down because it was using too much swap space.

    Example

    The system administrator increased the swap partition to prevent the server from crashing during peak processing hours.

    Usage

    Often used as an uncountable noun in this context.

    • virtual memory
Etymology 1

From Middle English swappen (“to swap”), originally meaning "to hurl" or "to strike", the word alludes to striking hands together when making an exchange; probably from Old English *swappian, a secondary form of Old English swāpan (“to swoop”). Cognate with German schwappen (“to slosh, slop”). Compare also Middle English swippen (“to strike, hit”), from Old English swipian (“to scourge, strike, beat, lash”), Old Norse svipa (“to swoop, flash, whip, look after, look around”). More at swipe.

Etymology 2

From the verb swap. First attested in 1620.

Etymology 3

From Middle English swap, swappe (“a blow, strike, lash from a whip”), from the verb (see Etymology 1 above).

Idioms1 entry

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