noun alternate succession; alternation; a mingling.
2. interchange ·vi to make an interchange; to alternate.
3. interchange ·noun the mutual exchange of commodities between two persons or countries; barter; commerce.
4. interchange ·noun the act of mutually changing; the act of mutually giving and receiving; exchange; as, the interchange of civilities between two persons.
5. interchange ·vt to cause to follow alternately; to intermingle; to vary; as, to interchange cares with pleasures.
6. interchange ·vt 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.