- to exchange, barter, or trade, as one thing for another: He swapped his wrist watch for the radio.
- to substitute (one thing) for another (sometimes followed by in): Swap in red wine for white, since powerful nutrients are in the red grape's skin.
- to replace (one thing) with another (sometimes followed by out): To cut down on fat, swap cream for milk.
- to make an exchange.
- an exchange: He got the radio in a swap.
Origin of swap
- to trade or exchange (something or someone) for another
- an exchange
- something that is exchanged
- Also called: swap option, swaption finance 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)
Word Origin for 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 1590s, possibly from the practice of slapping hands together as a sign of agreement in bargaining. Related: Swapped; swapping. The noun in this sense is attested from 1620s.