an act of giving one thing and receiving another (especially of the same kind) in return
negotiations should lead to an exchange of land for peace
opportunities for the exchange of information
the changing of money to its equivalent in the currency of another country
they provided me with currency exchange at competitive rates
a short conversation or an argument
there was a heated exchange
a move or short sequence of moves in which both players capture material of comparable value, or particularly the exchange in which one captures a rook in return for a knight or bishop