WordNet (r) 3.0 (2006):

general store
    n 1: a retail store serving a sparsely populated region; usually
         stocked with a wide variety of merchandise [syn: country
         store, general store, trading post]

Moby Thesaurus II by Grady Ward, 1.0:

31 Moby Thesaurus words for "general store":
   boutique, chain store, co-op, concession, cooperative,
   countinghouse, country store, department store, dime store,
   discount house, discount store, emporium, establishment,
   five-and-ten, house, magasin, mail-order house, market, mart, post,
   retail store, salon, shop, store, supermarket, trading post,
   variety shop, variety store, warehouse, wareroom,
   wholesale house