two-way communication

countable uncountable

Any form of communication between two parties, both of whom can send and receive messages.

Japanese Meaning

双方向コミュニケーション：双方が送受信可能な形態のコミュニケーション。 / 双方向通信：二者間で互いに情報の送受信ができる通信形態。 / 相互通信：互いに情報交換が可能な通信形式。

Effective disaster response relies on two-way communication between emergency teams and affected communities.

効果的な災害対応は、救助チームと被災コミュニティの間の双方向のコミュニケーションに依存しています。

Sense（1）

Any form of communication between two parties, both of whom can send and receive messages.

two-way communications

（ plural ）