Pittsburgh

Từ điển WordNet v3.1 - WordNet Dictionary

noun

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 (Freq. 5)
• Instance Hypernyms:
city, metropolis, urban center
• Part Holonyms:
Pennsylvania, Keystone State, PA
• Part Meronyms:
Carnegie Mellon University, University of Pittsburgh