| noun | a junction of highways on different levels that permits traffic to move from one to another without crossing traffic streams |
| noun | mutual interaction; the activity of reciprocating or exchanging (especially information) |
| noun | the act of changing one thing for another thing “Adam was promised immortality in exchange for his disobedience” |
| noun | reciprocal transfer of equivalent sums of money (especially the currencies of different countries) “he earns his living from the interchange of currency” |
| verb | put in the place of another; switch seemingly equivalent items “the con artist replaced the original with a fake Rembrandt” |
| verb | give to, and receive from, one another “Would you change places with me?” |
| verb | cause to change places “interchange this screw for one of a smaller size” |
| verb | reverse (a direction, attitude, or course of action) |
| interchange | verb | give to, and receive from, one another |
| reciprocate | verb | act, feel, or give mutually or in return |
| exchange | verb | exchange a penalty for a less severe one |
| substitute | noun | a person or thing that takes or can take the place of another |
| substitution | noun | an event in which one thing is substituted for another |
| replacement | noun | the act of furnishing an equivalent person or thing in the place of another |
| exchange | noun | the act of giving something in return for something received |
| interchange | noun | mutual interaction; the activity of reciprocating or exchanging (especially information) |
| tack | noun | (nautical) the act of changing tack |
| switch | noun | an event in which one thing is substituted for another |
| flip-flop | noun | a decision to reverse an earlier decision |