Interchange is defined as to trade.(verb)
An example of interchange is bartering a massage for gardening work.
The definition of an interchange is an exchange or a place where two elements or people meet to allow exchange from one to the other.(noun)
See interchange in Webster's New World College Dictionary
Origin: ME entrechangen < OFr entrechangier: see inter- & change
See interchange in American Heritage Dictionary 4
verb in·ter·changed, in·ter·chang·ing, in·ter·chang·es verb, transitive
Origin: Middle English enterchaungen
Origin: , from Old French entrechangier, to change
Origin: : entre-, between (from Latin inter-; see inter-)
Origin: + changier, to change; see change.
Learn more about interchange