The Collaborative International Dictionary of English v.0.48:

Bazaar \Ba*zaar"\ Bazar \Ba*zar"\(b[.a]*z[aum]r"), n. [Per.
   b[=a]zar market.]
   1. In the East, an exchange, marketplace, or assemblage of
      shops where goods are exposed for sale.
      [1913 Webster]

   2. A spacious hall or suite of rooms for the sale of goods,
      as at a fair.
      [1913 Webster]

   3. A fair for the sale of fancy wares, toys, etc., commonly
      for a charitable purpose. --Macaulay.
      [1913 Webster] BC

WordNet (r) 3.0 (2006):

bazaar
    n 1: a shop where a variety of goods are sold [syn: bazaar,
         bazar]
    2: a street of small shops (especially in Orient) [syn:
       bazaar, bazar]
    3: a sale of miscellany; often for charity; "the church bazaar"
       [syn: bazaar, fair]

Moby Thesaurus II by Grady Ward, 1.0:

31 Moby Thesaurus words for "bazaar":
   auto show, boat show, closing-out sale, commercial complex,
   distress sale, emporium, exposition, fair, flea fair, flea market,
   garage sale, going-out-of-business sale, inventory-clearance sale,
   market, market overt, marketplace, mart, open market, plaza,
   rialto, rummage sale, sale, shopping center, shopping mall,
   shopping plaza, show, staple, street market, tax sale, trade fair,
   white elephant sale



The Jargon File (version 4.4.7, 29 Dec 2003):

bazaar
 n.,adj.

    In 1997, after meditating on the success of Linux for three years, the
    Jargon File's own editor ESR wrote an analytical paper on hacker culture
    and development models titled The Cathedral and the Bazaar. The main
    argument of the paper was that Brooks's Law is not the whole story; given
    the right social machinery, debugging can be efficiently parallelized
    across large numbers of programmers. The title metaphor caught on (see also
    cathedral), and the style of development typical in the Linux community
    is now often referred to as the bazaar mode. Its characteristics include
    releasing code early and often, and actively seeking the largest possible
    pool of peer reviewers. After 1998, the evident success of this way of
    doing things became one of the strongest arguments for open source.