
1) Sears 2) Staples 3) Suburban shopping site, often 4) Walmart
Found on
https://www.crosswordclues.com/clue/big-box-store

A big-box store (also supercenter, superstore, or megastore) is a physically large retail establishment, usually part of a chain. The term sometimes also refers, by extension, to the company that operates the store. The store may sell general dry goods in which case it is a department store, or may be limited to a particular specialty (such establ...
Found on
http://en.wikipedia.org/wiki/Big-box_store

A large store whose actual layout resembles a massive box or square when viewed from above. This type of store typically features thousands of square feet worth of floor space. Other names for this kind of store include megacenter, superstore and supercenter.
Found on
https://www.encyclo.co.uk/local/23095
No exact match found.