Increase and Upsurge

Increase noun - Something added (as by growth).

Upsurge is a synonym for increase in addition topic. In some cases you can use "Upsurge" instead the word "Increase" as a noun or a verb, when it comes to topics like climb, growth, upturn, upswing.

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

Upsurge noun - A sudden or abrupt strong increase.

Increase is a synonym for upsurge in upturn topic. You can use "Increase" instead the word "Upsurge" as a noun or a verb, if it concerns topics such as upswing.

Nearby Word: upsurging