The Collaborative International Dictionary of English v.0.48:

Mart \Mart\ (m[aum]rt), n. [Contr. fr. market.]
   [1913 Webster]
   1. A market.
      [1913 Webster]

            Where has commerce such a mart . . . as London?
                                                  --Cowper.
      [1913 Webster]

   2. A bargain. [Obs.] --Shak.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Mart \Mart\, v. t.
   To buy or sell in, or as in, a mart. [Obs.]
   [1913 Webster]

         To sell and mart your officer for gold
         To undeservers.                          --Shak.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Mart \Mart\, v. t.
   To traffic. [Obs.] --Shak.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Mart \Mart\, n. [See Mars.]
   1. The god Mars. [Obs.]
      [1913 Webster]

   2. Battle; contest. [Obs.] --Fairfax.
      [1913 Webster]

WordNet (r) 3.0 (2006):

mart
    n 1: an area in a town where a public mercantile establishment
         is set up [syn: marketplace, market place, mart,
         market]

Moby Thesaurus II by Grady Ward, 1.0:

58 Moby Thesaurus words for "mart":
   agora, auto show, bazaar, boat show, boutique, campo, chain store,
   co-op, commercial complex, concession, cooperative, countinghouse,
   country store, department store, dime store, discount house,
   discount store, emporium, establishment, exposition, fair,
   five-and-ten, flea fair, flea market, forum, general store, house,
   magasin, mail-order house, market, market cross, market overt,
   marketplace, open market, piazza, place, plaza, post, retail store,
   rialto, salon, shop, shopping center, shopping mall,
   shopping plaza, show, square, staple, store, street market,
   supermarket, trade fair, trading post, variety shop, variety store,
   warehouse, wareroom, wholesale house



U.S. Gazetteer Places (2000):

Mart, TX -- U.S. city in Texas
   Population (2000):    2273
   Housing Units (2000): 934
   Land area (2000):     1.343414 sq. miles (3.479427 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    1.343414 sq. miles (3.479427 sq. km)
   FIPS code:            46824
   Located within:       Texas (TX), FIPS 48
   Location:             31.542704 N, 96.831151 W
   ZIP Codes (1990):     76664
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Mart, TX
    Mart