/ ˈlɒgəgræm; NAmE ˈlɔːg-/ (also logo·graph /ˈlɒgəgrɑːf; NAmE ˈlɔːgəgræf/) noun
( technical ) a symbol that represents a word or phrase, for example those used in ancient writing systems
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WORD ORIGIN
mid 19th cent.: from Greek logos word + -gram ( see gram ).