interchange
verb (used with object)
to put each in the place of the other.
Used to describe an ongoing action or state that is currently taking place in the immediate present.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Boston is topsy-turvey; Holmes was a prophet; and 'Brattle Street and Temple Place are interchanging cards!'
From Real Folks by A. D. T. (Adeline Dutton Train) Whitney