Improve and Speed up

Improve verb - To make better.

Speed up and improve are semantically related In some cases you can use "Speed up" instead a verb "Improve".

Nearby Words: improvement, improving, improvable, improver

Speed up verb - To cause to move or proceed fast or faster.

Improve and speed up are semantically related in ease topic. Sometimes you can use "Improve" instead a verb "Speed up", if it concerns topics such as increase, alleviate, accelerate.