A big-box store is a physically large retail establishment, usually part of a chain of stores. The term sometimes also refers, by extension, to the company that operates the store. The term "big-box" references the typical appearance of buildings occupied by such stores.
Walmart, a general merchandise big-box store
Barnes & Noble, a specialty big-box store
A big-box shopping center in Paramus, New Jersey, that includes an IKEA (not pictured), a Christmas Tree Shops store, and a Bed Bath & Beyond store. It is located across from Westfield Garden State Plaza shopping mall.
Interior of Mitre 10 MEGA, a big-box hardware store in Australia
Target Corporation is an American retail corporation that operates a chain of discount department stores and hypermarkets, headquartered in Minneapolis, Minnesota. It is the seventh-largest retailer in the United States, and a component of the S&P 500 Index. The company is one of the largest American-owned private employers in the United States.
Corporate headquarters, Target Plaza, in Minneapolis
Target Corporation
The exterior of a typical Target store in Rock Hill, South Carolina, in May 2012 (Store #1371)
CVS Pharmacy inside of a Target store (store #1910 in Savannah, Georgia)