The Collaborative International Dictionary of English v.0.48:

Shopkeeper \Shop"keep`er\, n.
   A trader who sells goods in a shop, or by retail; -- in
   distinction from one who sells by wholesale. --Addison.
   [1913 Webster]

WordNet (r) 3.0 (2006):

shopkeeper
    n 1: a merchant who owns or manages a shop [syn: shopkeeper,
         tradesman, storekeeper, market keeper]

Moby Thesaurus II by Grady Ward, 1.0:

54 Moby Thesaurus words for "shopkeeper":
   bourgeoisie, chandler, common people, common run, common sort,
   commonage, commonality, commonalty, commoners, commons, dealer,
   distributor, importer, jobber, laborers, linendrapers,
   lower classes, lower middle class, lower orders,
   lumpen proletariat, marketer, merchandiser, merchant, middle class,
   middle orders, middleman, monger, ordinary people, peasantry,
   plain folks, plain people, proletariat, rank and file, regrater,
   retail dealer, retail merchant, retailer, shopkeepers,
   small tradesmen, storekeeper, the lower cut, the other half,
   the third estate, toilers, toiling class, trader, tradesman,
   tradeswoman, trafficker, upper middle class, vulgus, wholesaler,
   working class, working people