The Collaborative International Dictionary of English v.0.48:

Broadway \Broadway\ n.
   1. a street in Manhattan famous for its restaurants and its
      theaters in the Times Square area. At its intersection
      with Seventh Avenue, it forms Times Square, an area with
      impressive displays of bright lights, particularly
      advertising; it is considered by some to be the cultural
      center of New York City.
      [WordNet 1.5 +PJC]

   2. the theater district of Manhattan, located near Times
      Square.
      [PJC]

U.S. Gazetteer (1990):

Broadway, NC (town, FIPS 8080)
  Location: 35.45714 N, 79.05356 W
  Population (1990): 973 (393 housing units)
  Area: 3.1 sq km (land), 0.1 sq km (water)
  Zip code(s): 27505
Broadway, VA (town, FIPS 10040)
  Location: 38.60824 N, 78.79594 W
  Population (1990): 1209 (513 housing units)
  Area: 1.9 sq km (land), 0.0 sq km (water)
  Zip code(s): 22815

Moby Thesaurus II by Grady Ward, 1.0:

30 Moby Thesaurus words for "Broadway":
   burlesque, carnival, circus, drama, entertainment industry, legit,
   legitimate stage, off Broadway, off-off-Broadway, playland,
   repertory drama, show biz, show business, stage world, stagedom,
   stageland, stock, strawhat, strawhat circuit, summer stock,
   the boards, the footlights, the scenes, the stage, the theater,
   theater world, theatromania, theatrophobia, variety, vaudeville