INTERCHANGE
In`ter*change", v. t. [imp. & p. p. Interchanged; p. pr. & vb. n.
Interchanging.] Etym: [OE. entrechangen, OF. entrechangier. See
Inter-, and Change.]

1. 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. I shall interchange My waned state for Henry's regal crown. Shak.

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

INTERCHANGE
In`ter*change", v. i.

Defn: To make an interchange; to alternate. Sir P. Sidney.

INTERCHANGE
In`ter*change", n. Etym: [Cf. OF. entrechange.]

1. The act of mutually changing; the act of mutually giving and receiving; exchange; as, the interchange of civilities between two persons. "Interchange of kindnesses." South.

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

3. Alternate succession; alternation; a mingling.
The interchanges of light and darkness. Holder.
Sweet interchange Of hill and valley, rivers, woods, and plains.
Milton.

INTERCHANGEABILITY
In`ter*change`a*bil"i*ty, n.