An individual unit of data transported between endpoint locations. A message consists of a document plus a header (information about the transfer).
— Computer ScienceAn electronic instance of one-to-many schemas. Usually documents are sent between two processes.
— Computer Science1. Any thought or idea expressed briefly in a plain or secret language and prepared in a form suitable for transmission by any means of communication. 2. A narrowly focused communication directed at a specific audience to support a specific theme.
— USA Army