two-way
adjective [ before noun ]
uk/ˈtuːˌweɪ/ usmoving or allowing movement in two different directions:
Anglo-Indian business is now a two-way street that can profit both sides.
The agreement eliminates most tariffs on two-way trade between the US and the five other participating nations.
used to describe a situation in which two people or groups both work towards something, where both expect rewards from the efforts they make:
a two-way battle/discussion/process