Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun back-channel

1 sense of back channel

Sense 1
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")
       => channel, communication channel, line -- ((often plural) a means of communication or access; "it must go through official channels"; "lines of communication were set up between the two firms")

Similarity of adj back-channel

1 sense of back-channel

Sense 1
back-channel -- (via a back channel; "the failure of back-channel negotiations")