two-way
adjective /ˌtuː ˈweɪ/
  /ˌtuː ˈweɪ/
[usually before noun]- moving in two different directions; allowing something to move in two different directions
- two-way traffic
 - two-way trade
 - a two-way switch (= that allows electric current to be turned on or off from either of two points)
 
 - (of communication between people) needing equal effort from both people or groups involved
- Friendship is a two-way process.
 - a two-way exchange of information
 
 - (of radio equipment, etc.) used both for sending and receiving signals
- a two-way radio