two-way

Short definition from Wiktionary

Adjective

1. 1
   Allowing traffic in two directions.
2. 2
   Moving or occurring in opposite directions.
3. 3
   Permitting communication in two directions, i.e. both transmitting and receiving.
4. 4
   Involving the mutual action or participation of two parties.
5. 5
   Utilising both Western and Indigenous knowledge systems; bothways.
6. 6
   Playing both offense and defense in the same game.
7. 7
   Having or involving exactly two variables; bivariate.

Noun

1. 1
   A serving of Cincinnati chili with spaghetti.