- to make (something) better
- This operation will greatly/dramatically/significantly improve her chances of survival.
- The advertising campaign has improved sales.
- Maybe we'll buy a house when our financial situation improves.
- Her writing has improved since the beginning of the school year.
- The company has been having steadily improving sales.
- After months of study, I improved on my original score.
- It'll be hard to improve upon the success they had last year.