signifier

/ˈsɪɡnɪˌfaɪər/
noun
  1. A word, symbol, or gesture that represents or indicates something else.
    • The thumbs-up emoji is a common signifier of approval.
    • A red octagon is a signifier for 'stop' in traffic.
    • In language, the word 'tree' is a signifier for the actual plant.
  2. In linguistics and semiotics, the physical form of a sign (such as a sound or image) that carries meaning.
    • In semiotics, the signifier is distinct from the concept it represents.
    • The same signifier can have different meanings in different cultures.
    • The signifier 'dog' consists of the letters d-o-g and the sound it makes.
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