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The meaning of IMPROVE is to enhance in value or quality : make better. How to use improve in a sentence. Synonym Discussion of Improve. IMPROVE definition: to bring into a more desirable or excellent condition. See examples of improve used in a sentence. Phrasal verb improve on/upon something (Definition of improve from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

If you improve on a previous achievement of your own or of someone else, you achieve a better standard or result. We need to improve on our performance against France. [VERB + on] When you improve something, you make it better. For example, you can improve your harmonica playing with practice. Improve, ameliorate, better imply bringing to a more desirable state. Improve usually implies remedying a lack or a felt need: to improve a process, oneself (as by gaining more knowledge). A drawing of a man pointing to a graphing showing an improvement in sales numbers. Improvement is the process of a thing moving from one state to a state considered to be. improve on/upon [phrasal verb] improve on/upon (something) : to do better than (something previously done)