IPA: /ˌɛk.spləˈneɪ.ʃən/
KK: /ˌɛk.spləˈneɪ.ʃən/
A statement or account that makes something clear or easy to understand, often by providing details or reasons.
The teacher gave a clear explanation of the math problem to help the students understand.
Explanation → It is formed from "ex-" (meaning out) and "planare" (meaning to make level or flat). The word refers to the act of making something clear or laying out information so that it can be understood.
Think of 'laying out' information ('planare') to make it clear ('ex-') — that's what an explanation does.