(chess) gaining (or losing) a rook in return for a knight or bishop; "black lost the exchange"
give to, and receive from, one another; "Would you change places with me?"; "We have been exchanging letters for a year"
the act of putting one thing or person in the place of another: "he sent Smith in for Jones but the substitution came too late to help"
put in the place of another; switch seemingly equivalent items; "the con artist replaced the original with a fake Rembrandt"; "substitute regular milk with fat-free milk"; "synonyms can be interchanged without a changing the context's meaning"
reciprocal transfer of equivalent sums of money (especially the currencies of different countries); "he earns his living from the interchange of currency"
hand over one and receive another, approximately equivalent; "exchange prisoners"; "exchange employees between branches of the company"