back channel

or back·chan·nel

[ bak-chan-l ]

  1. a secret, unofficial, or informal channel of communication as used in politics or diplomacy: sensitive information passed on through a back channel.

Origin of back channel

First recorded in 1965–70

Other words from back channel

  • back-chan·nel, adjective
  • back-chan·nel·ing, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use back channel in a sentence