exchange Definition

the act of giving or taking one thing in return for another : trade

the act or process of substituting one thing for another

reciprocal giving and receiving

to part with, give, or transfer in consideration of something received as an equivalent

to have replaced by other merchandise

to part with for a substitute

the ratio at which the principal unit of two currencies may be traded

a student from one country received into an institution in another country often in exchange for one sent to an institution in the home country of the first

to shoot at each other

a post exchange at a naval or air force base

an unconditional written order from one person to another to pay a specified sum of money to a designated person

a process of settling accounts or debts between persons residing in different countries

foreign currency or current short-term credit instruments payable in such currency

a reversible interchange of one kind of ion present on an insoluble solid with another of like charge present in a solution surrounding the solid with the reaction being used especially for softening or demineralizing water, the purification of chemicals, or the separation of substances

an insoluble material of high molecular weight that contains groups which can be exchanged with ions in a solution with which it is in contact