definitives

/dɪˈfɪnɪtɪvz/
noun
  1. Things that are final, authoritative, or conclusive; the most complete or reliable versions of something.
    • The library keeps the definitives of classic novels for reference.
    • In grammar, words like 'the' and 'this' are called definitives because they specify nouns.
    • The museum's collection includes the definitives of modern art from the 20th century.
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