What is the difference between metonymy and metaphor?

Metonymy and metaphor are both figures of speech that relate one thing to another thing, but they do so differently.

  • Metonymy replaces one word or phrase with another word or phrase that is closely related or associated with it (e.g., using “Silicon Valley” to describe the “American tech industry”).
  • A metaphor makes a direct comparison between two seemingly unrelated things by stating one is the other (e.g., “Life is a highway”).

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