| Noun | 1. | communication channel - (often plural) a means of communication or access; "it must go through official channels"; "lines of communication were set up between the two firms" communicating, communication - the activity of communicating; the activity of conveying information; "they could not act without official communication from Moscow" 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" lens - (metaphor) a channel through which something can be seen or understood; "the writer is the lens through which history can be seen" inter-group communication, liaison, contact, link - a channel for communication between groups; "he provided a liaison with the guerrillas" plural, plural form - the form of a word that is used to denote more than one |