IPA: /ɪmˈpruːvmənt/
KK: /ɪmˈpruːvmənt/
A change or process that makes something better or enhances its quality.
The improvement in her grades was noticeable after she started studying harder.
Improvement → It is formed from "in-" (meaning into or not) and "pro-" (meaning forward) combined with "movere" (meaning to move) and the suffix "-ment" (indicating the result of an action). The word refers to the process of moving forward into a better state or condition.
Think of 'moving forward' ('pro-') into a better state ('in-') — that's what improvement means.