Improve usually implies remedying a lack or a felt need:
To improve a process, oneself (as by gaining more knowledge).
Ameliorate, a formal word, implies improving oppressive, unjust, or.
Definition of improve verb in oxford advanced learner's dictionary.
Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
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]
Definition of improve.
English dictionary and integrated thesaurus for learners, writers, teachers, and students with advanced, intermediate, and beginner levels.
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.
The meaning of improve is to enhance in value or quality :
Make better.
How to use improve in a sentence.
Synonym discussion of improve.
To advance to a more desirable state:
Ameliorate, amend, better, help, meliorate, upgrade.
Phrasal verb improve on/upon something (definition of improve from the cambridge advanced learner's dictionary & thesaurus © cambridge university press)
After months of study, i improved on my original score.
It'll be hard to improve upon the success they had last year.