interchange

Noun

• reciprocal transfer of equivalent sums of money (especially the currencies of different countries)
  • he earns his living from the interchange of currency
    

• the act of changing one thing for another thing
  • Adam was promised immortality in exchange for his disobedience
    
  • there was an interchange of prisoners
    

• mutual interaction; the activity of reciprocating or exchanging (especially information)

• a junction of highways on different levels that permits traffic to move from one to another without crossing traffic streams

Verb

• reverse (a direction, attitude, or course of action)

• cause to change places
  • interchange this screw for one of a smaller size
    

• give to, and receive from, one another
  • Would you change places with me?
    
  • We have been exchanging letters for a year
    

• put in the place of another; switch seemingly equivalent items
  • the con artist replaced the original with a fake Rembrandt
    
  • substitute regular milk with fat-free milk
    
  • synonyms can be interchanged without a changing the context's meaning
    

Related words

• Synonyms: 
  exchange , reciprocation , give-and-take , tack , switch , alternate , flip , flip-flop , counterchange , transpose , change , substitute , replace