Definition of Niagara Falls
1 waterfalls in the Niagara River (36 miles or 58 kilometers long flowing from Lake Erie north into Lake Ontario) on the border between the U.S. (New York state) and Canada (the province of Ontario) ◆Niagara Falls is divided by Goat Island into two sections: Horseshoe Falls, also called the Canadian Falls (158 feet or 48 meters high), and the narrower American Falls (167 feet or 51 meters high).
2 city in western New York at the falls population 50,193
3 city in southeastern Ontario, Canada, at the falls population 82,997
NIAGARA FALLS Defined for English Language Learners
Definition of Niagara Falls for English Language Learners
: waterfalls on the border of the U.S. and Canada
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