swap
UK /ˈswɒp/ · US /ˈswɑp/ verb, noun
Forms swaps swapping swapped swop
- verb (transitive) To exchange or give (something) in an non-normal exchange (for something else).
- verb (transitive, obsolete) To hit, to strike.
- verb (transitive, obsolete) To beat the air, or ply the wings, with a sweeping motion or noise; to flap.
- verb (intransitive, obsolete) To descend or fall; to rush hastily or violently.
- noun An exchange of two comparable things.
- noun (finance) A financial derivative in which two parties agree to exchange one stream of non-normal cashflow against another stream.
- noun (computing, informal, uncountable) Space available in a swap file for use as auxiliary memory. “How much swap do you need?”
- noun (Cambridge University slang) A social meal at a restaurant between two university societies, usually involving drinking and banter; commonly associated with fining and pennying; equivalent to a crewdate at Oxford University.
- noun (obsolete, UK, dialect) A blow; a stroke.
Synonyms
exchange switch trade interchange bang flap fly knock tap speed zoom barter quid pro quo swop
Etymology
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.
From the verb swap. First attested in 1620.
From Middle English swap, swappe (“a blow, strike, lash from a whip”), from the verb (see Etymology 1 above).
Webster’s 1913
- verb To strike; --with off. [Obs. or Prov. Eng.] "Swap off his head!" Chaucer.
- verb To exchange (usually two things of the same kind); to swop.
- verb To fall or descend; to rush hastily or violently. C. Richardson (Dict.).
- verb To beat the air, or ply the wings, with a sweeping motion or noise; to flap.
Etymology [OE. swappen to strike; cf. E. to strike a bargain; perh. akin to E. sweep. Cf. Swap a blow, Swap, v. i.]
Etymology [Cf. Swap, v. t.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “swap”, CC BY-SA 4.0. Details