WordNet (r) 3.0 (2006):

wholesale house
    n 1: a sales outlet offering goods at a discounted price [syn:
         discount house, discount store, discounter,
         wholesale house]

Moby Thesaurus II by Grady Ward, 1.0:

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