semiological

/ˌsɛmioʊˈlɑdʒɪkəl/
adjective
  1. Relating to the study of signs and symbols, especially in language and communication.
    • The course covered semiological theories of how images convey messages.
    • Her research focused on the semiological aspects of advertising.
    • The semiological analysis of traffic signs helps drivers understand their meanings.
Synonyms
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