IPA: /ˌvɛəˈreɪʃən/
KK: /vɛrˈeɪʃən/
A change or difference in something, often referring to a form or version that is different from the usual or standard one.
The artist created a beautiful variation of the original painting.
Variation → It is formed from "vari-" (from Latin "varius", meaning diverse or different) and "-ation" (a suffix used to form nouns indicating an action or resulting state). The word "variation" refers to the state of being different or diverse.
Think of 'diverse' ('vari-') changes or differences in something — that's what variation means.