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

See also: improve

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

Antonym: decline

Encyclopedia: Improvement

• grinder
• grinding
• grinding wheel
• grindle
• grindstone
• gringo
• grinner
• grinning
• griot
• grip
• gripe
• griper
• gripes
• griping
• grippe
• gripper
• gripping
• gripsack
• Gris
• grisaille
• Griselinia
• Griselinia littoralis
• Griselinia lucida
• griseofulvin
• grisette