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Wikipedia definition
1. Morse code abbreviationsMorse code abbreviations differ from prosigns for Morse Code in that they observe normal interletter spacing; that is, they are not "run together" the way prosigns are. From 1845 until well into the second half of the 20th century, commercial telegraphic code books were used to shorten telegrams, e.g. "Pascoela = Natives have plundered everything from the wreck".
Read “Morse code abbreviations” on English Wikipedia
Read “電報略号” on Japanese Wikipedia
Read “Morse code abbreviations” on DBpedia

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