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Từ điển WordNet v3.1 - WordNet Dictionary 
	
		   
 Potomac   
  1. a river in the east central United States; rises in West Virginia in the Appalachian Mountains and flows eastward, forming the boundary between Maryland and Virginia, to the Chesapeake Bay • Syn: Potomac River • Instance Hypernyms: river • Part Holonyms: West Virginia, Mountain State, WV, Maryland, Old Line State, Free State, MD, Virginia, Old Dominion, Old Dominion State, VA 2. term sometimes used to refer to Washington, D.C. • Instance Hypernyms: Washington, Washington D.C., American capital, capital of the United States
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