messages

A message is a discrete unit of communication intended by the source for consumption by some recipient or group of recipients. A message may be delivered by various means, including courier, telegraphy, carrier pigeon and electronic bus.
A message can be the content of a broadcast. An interactive
exchange of messages forms a conversation.One example of a message is a press release, which may vary from a brief report or statement released by a public agency to commercial publicity material.

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