IPA: /ˈsuːpərˌsɛntər/
KK: /ˈsuːpərˌsɛntər/
A very large store that sells a wide variety of products, including groceries and household items, often at discounted prices.
I went to the supercenter to buy groceries and some new clothes.
Supercenter → It is formed from "super-" (meaning above or beyond) and "center" (from Old French *centre*, meaning the middle point). The word "supercenter" refers to a large retail store that serves as a central hub for various goods and services, going beyond a typical center.
Think of a place that is 'above' ('super-') the usual 'middle point' ('center') — that's why a supercenter is a large store that offers more than just the basics.