synonymity

/ˌsɪnəˈnɪməti/
noun
  1. The state or quality of being synonymous; having the same or very similar meaning.
    • The synonymity of 'happy' and 'glad' makes them easy to swap in most sentences.
    • In her essay, she argued for the near synonymity of 'freedom' and 'liberty' in modern usage.
    • Linguists study the synonymity of words to understand subtle differences in meaning.
Antonyms
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