English edit

Etymology 1 edit

Named after its two electrical connections.

Noun edit

two-way switch (plural two-way switches)

  1. (US, rare, electricity) A plain type of light switch that can control lights, or other electrical loads, from a single location; a single-throw switch.

Etymology 2 edit

Named after its use in pairs to control a load from two locations.

Noun edit

two-way switch (plural two-way switches)

  1. (British, electricity) Commonwealth spelling of (US): three-way switch.