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

• aggroup
• Agha
• Aghan
• aghast
• agile
• agilely
• agility
• agin
• Agincourt
• aging
• agio
• agiotage
• agism
• agist
• agistment
• agitate
• agitated
• agitated depression
• agitating
• agitation
• agitative
• agitato
• agitator
• agitprop
• Agkistrodon