n.
1.a junction of highways on different levels that permits traffic to move from one to another without crossing traffic streams
2.mutual interaction
3.reciprocal transfer of equivalent sums of money especially the currencies of different countries interchange v.
1.give to, and receive from, one another
2.cause to change places
3.reverse (a direction, attitude, or course of action)
Idiom of the Day
know (something) backwards and forwards
to know something very well
I know the names of the people in my history class backwards and forwards.