back channel   (TTS Sound)

The back_channel has 1 Senses.

• back channel
• an alternative to the regular channels of communication that is used when agreements must be made secretly (especially in diplomacy or government); "they negotiated via a back channel"
• 協定が内密に行われなければならない場合に（特に外交または政府で）、使われるコミュニケーションの通常の経路に代わるもの