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1. The representation of ideas by graphic symbols.
2. The use of ideograms to express ideas.
(Linguistics) the use of ideograms to communicate ideas
id•e•og•ra•phy(ˌɪd iˈɒg rə fi, ˌaɪ di-)
the use of ideograms.
a form of writing in which a written symbol represents an object rather than a word or speech sound. — ideographic, ideographical, adj.See also: Writing