an act or instance of interchanging; reciprocal exchange: the interchange of commodities.
8.
a changing of places, as between two persons or things, or of one with another.
9.
alternation; alternate succession.
10.
a highway intersection consisting of a system of several different road levels arranged so that vehicles may move from one road to another without crossing the streams of traffic.
Origin: 1325–75; inter- + change; replacing Middle English entrechaungen < Middle French entrechangier
late 14c., from O.Fr. entrechangier, from entre- (from L. inter-) + changier "to change." The noun in ref. to a type of road junction is first recorded 1944.