from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A very large retail store that stocks highly diversified merchandise, such as groceries, toys, and camera equipment, or a wide variety of mechandise in a specific product line, such as computers or sporting goods.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An extremely large store, hypermarket.
super- + store (Wiktionary)