1.
Two-way means moving or working in two opposite directions or allowing something to move or work in two opposite directions.
The bridge is now open to two-way traffic...
ADJ : usu ADJ n
2.
A two-way radio can send and receive signals.
ADJ : ADJ n
3.
If there is two-way help or learning, two people or groups are both helping each other or both learning from each other.
Trust is a two way thing.
ADJ : ADJ n