verb

better

BET-er/ˈbetər/

To improve beyond a previous level or performance.

He sands the rough chair to better its finish.

An older man improves a battered wooden chair by sanding its rough seat: the worked area is smooth and clean beside the still-splintered, worn area.
Etymology

Old English betera expressed superior quality. The verb applies that comparison to improvement—making something better—and to competition, where bettering people means surpassing them.

In context

Kurzgesagt – In a Nutshell3:20
… try to better your situation, and your total income is not improving or even a shrinking welfare can create a ceiling that traps people in poverty …
Universal Basic Income Explained – Free Money for Everybody? UBI

More examples

  • She hopes to better her previous race time.
  • The new drainage system betters conditions in the fields.
  • They moved abroad to better their prospects.

Forms

better · betters · bettered · bettering

Similar words

improve
The more usual term for making something better.
surpass
Specifically means exceeding a standard or another achievement.