Three-way synonyms

This pipe was provided, close to the orifice, with a three-way cock, by means of which the steam might be first discharged into the sand, and the current between the cock and the well then suddenly reversed and diverted into the well.

We'll do a three-way.

Dean reminded the voice on the other end of a three-way conversation that mother and girl hardly knew one another.

The words struck her as odd, but she had trouble concentrating when the men launched into a three-way battle.

By means of the three-way switch C the battery current may be sent either into the primary of E, for the purpose of calibrating the galvanometer, or into the magnetizing coil of the ring under test.