Answer: interchanges

AnswerCrossword Clue
interchanges(of a thing) Be able to be exchanged with another
interchanges(of two or more people) Exchange (things) with each other
interchangesINTERCHANGE, to put each of (two things) in the place of the other also ENTERCHAUNGE
interchangesPut each of (two things) in the other's place