1.a junction of highways on different levels that permits traffic to move from one to another without crossing traffic streams
2.mutual interaction; the activity of interchanging or reciprocating
3.reciprocal transfer of equivalent sums of money especially the currencies of different countries;
he earns his living from the interchange of currency
1.give to, and receive from, one another;
Would you change places with me?
2.cause to change places;
interchange this screw for one of a smaller size
3.reverse (a direction, attitude, or course of action)