Interchange

To put each in the place of the other; to give and take mutually; to exchange; to reciprocate; as, to interchange places; they interchanged friendly offices and services.

To cause to follow alternately; to intermingle; to vary; as, to interchange cares with pleasures.

To make an interchange; to alternate.

The act of mutually changing; the act of mutually giving and receiving; exchange; as, the interchange of civilities between two persons.

The mutual exchange of commodities between two persons or countries; barter; commerce.

Alternate succession; alternation; a mingling.

reciprocal transfer of equivalent sums of money (especially the currencies of different countries); "he earns his living from the interchange of currency"