Improvement and Increase

Improvement noun - An instance of notable progress in the development of knowledge, technology, or skill.

Increase is a synonym for improvement in addition topic. In some cases you can use "Increase" instead a noun "Improvement", when it comes to topics like progress, process, bettering, enhancement.

Nearby Words: improve, improved, improving, improvable, improver

Increase noun - Something added (as by growth).

Improvement is a synonym for increase in progress topic. You can use "Improvement" instead a noun "Increase", if it concerns topics such as process, promotion, upturn, upswing.

Nearby Words: increased, increasing, increment, increasingly, incremental