verb, -changed, -chang⋅ing, noun | 1. | to give up (something) for something else; part with for some equivalent; change for another. |
| 2. | to replace (returned merchandise) with an equivalent or something else: Most stores will allow the purchaser to exchange goods. |
| 3. | to give and receive reciprocally; interchange: to exchange blows; to exchange gifts. |
| 4. | to part with in return for some equivalent; transfer for a recompense; barter: to exchange goods with foreign countries. |
| 5. | Chess. to capture (an enemy piece) in return for a capture by the opponent generally of pieces of equal value. |
| 6. | to make an exchange; engage in bartering, replacing, or substituting one thing for another. |
| 7. | to pass or be taken in exchange or as an equivalent. |
| 8. | the act, process, or an instance of exchanging: The contesting nations arranged for an exchange of prisoners; money in exchange for services. |
| 9. | something that is given or received in exchange or substitution for something else: The car was a fair exchange. |
| 10. | a place for buying and selling commodities, securities, etc., typically open only to members. |
| 11. | a central office or central station: a telephone exchange. |
| 12. | the method or system by which debits and credits in different places are settled without the actual transfer of money, by means of bills of exchange representing money values. |
| 13. | the discharge of obligations in different places by the transfer of credits. |
| 14. | the amount or percentage charged for exchanging money, collecting a draft, etc. |
| 15. | the reciprocal transfer of equivalent sums of money, as in the currencies of two different countries. |
| 16. | the giving or receiving of a sum of money in one place for a bill ordering the payment of an equivalent sum in another. |
| 17. | exchange rate. |
| 18. | the amount of the difference in value between two or more currencies, or between the values of the same currency at two or more places. |
| 19. | the checks, drafts, etc., exchanged at a clearinghouse. |
| 20. | Chess. a reciprocal capture of pieces of equivalent value by opponents in a single series of moves. |

exchange ex·change (ĭks-chānj')
v. ex·changed, ex·chang·ing, ex·chang·es
To substitute one thing for another. n.
The act of substituting one thing for another.