It seems you’re describing two important concepts in linguistics: denotation and connotation.
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Denotation refers to the literal meaning of a word—the objective definition found in a dictionary. For example, the denotation of the word "snake" is a legless reptile.
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Connotation, on the other hand, encompasses the emotional and cultural associations that a word invokes beyond its literal meaning. The word "snake" might connote treachery or deceit due to cultural associations with snakes in stories and folklore.
Understanding both aspects can significantly enhance effective communication and interpretation of language. If you'd like more examples or a deeper exploration, feel free to ask!