semiotics

noun
🔊/ˌsemiˈɒtɪks/
🔊/ˌsemiˈɑːtɪks/
[uncountable]
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  1. the study of signs and symbols and of their meaning and use符号学
    Word Originlate 19th cent.: from Greek sēmeiotikos ‘of signs’, from sēmeioun ‘interpret as a sign’.