improve, better, help, ameliorate mean to make more acceptable or to bring nearer a standard. improve and better are general and interchangeable and apply to what can be made better whether it is good or bad <measures to further improve the quality of medical care><immigrants hoping to better their lot>. help implies a bettering that still leaves room for improvement <a coat of paint would help that house>. ameliorate implies making more tolerable or acceptable conditions that are hard to endure <tried to ameliorate the lives of people in the tenements>.
IMPROVED Defined for Kids
Definition of IMPROVE for Kids
: to make or become better <Her writing has greatly improved.>