Meta-communication - (Etymology: Gk, meta + L, communicare, to inform), or metacommunication, is a secondary communication (including indirect cues) about how a piece of information is meant to be interpreted. It is based on idea that the same message accompanied by different meta-communication can mean something entirely different, including its opposite, as in irony. The term was brought to prominence by Gregory Bateson to refer to "communication about communication", which he expanded to: "all exchanged cues and propositions about (a) codification and (b) relationship between the communicators". Metacommunication may or may not be congruent, supportive or contradictory of that verbal communication.