From WordNet (r) 2.0 [wn]:
1: a city in southwestern Pennsylvania where the confluence of the Allegheny River and Monongahela River forms the Ohio River; long an important urban industrial area; site of Carnegie-Mellon University and the University of Pittsburgh
From U.S. Gazetteer (1990) [gazetteer]:
From U.S. Gazetteer Places (2000) [gaz-place]:
Pittsburgh, PA -- U.S. city in Pennsylvania Population (2000): 334563 Housing Units (2000): 163366 Land area (2000): 55.584434 sq. miles (143.963017 sq. km) Water area (2000): 2.767416 sq. miles (7.167573 sq. km) Total area (2000): 58.351850 sq. miles (151.130590 sq. km) FIPS code: 61000 Located within: Pennsylvania (PA), FIPS 42 Location: 40.441419 N, 79.977292 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Pittsburgh, PA Pittsburgh
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