to alternate; to intermingle or vary
to swap or change places
to mutually give and receive (something); to exchange
To act as or carry out an interchange (noun, senses 2, 3).
to switch (each of two things)
A connection between two or more lines, services or modes of transport; a station at which such a connection can be made.
An act of interchanging.
A highway junction in which traffic may change from one road to another without crossing a stream of traffic.
To diversify by placing or inserting other things among something.
To scatter or insert something into or among other things.
To mix two things irregularly, placing things of one kind among things of other.