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Noun: improvement  im'proov-munt
  1. A change for the better; progress in development
    - betterment, advance
  2. The act of improving something
    "their improvements increased the value of the property"
  3. A condition superior to an earlier condition
    "the new school represents a great improvement";
    - melioration

Derived forms: improvements

Type of: change of state, condition, shift, status, transformation, transmutation

Antonym: declination

Encyclopedia: Improvement