Synonyms: improvement
Definition: the act of improving something
Usage: their improvements increased the value of the property
Similar words: change of state
Definition: the act of changing something into something different in essential characteristics
Synonyms: betterment, advance, improvement
Definition: a change for the better; progress in development
Similar words: shift, transformation, transmutation
Definition: a qualitative change
Synonyms: melioration, improvement
Definition: a condition superior to an earlier condition
Usage: the new school represents a great improvement
Similar words: condition, status
Definition: a state at a particular time
Usage: a condition (or state) of disrepair; the current status of the arms negotiations