Niagara Falls
Americannoun
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the falls of the Niagara River: in Canada, the Horseshoe Falls, 158 feet (48 meters) high; 2,600 feet (792 meters) wide; in the U.S., American Falls, 167 feet (51 meters) high; 1,000 feet (305 meters) wide.
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a city in W New York, on the U.S. side of the falls.
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a city in SE Ontario, on the Canadian side of the falls.
noun
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(functioning as plural) the falls of the Niagara River, on the border between the US and Canada between Lake Erie and Lake Ontario: divided by Goat Island into the American Falls, 50 m (167 ft) high and approximately 300 m (985 ft) wide, and the Horseshoe or Canadian Falls, 47 m (158 ft) high and by some estimates well over 800 m (2625 ft) wide
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(functioning as singular) a city in W New York State, situated at the falls of the Niagara River. Pop: 78 815 (2001)
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(functioning as singular) a city in S Canada, in SE Ontario on the Niagara River just below the falls: linked to the city of Niagara Falls in the US by three bridges. Pop: 78 815 (2001)
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Great tourist attraction known as a honeymooners' resort.
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
On the southern shore of Lake Ontario, a short drive from Niagara Falls, Google has been demonstrating how it can use Nvidia’s own playbook to win customers.
From The Wall Street Journal ● Jun. 19, 2026
Dolomite is a widespread mineral found in iconic locations such as the Dolomite mountains in Italy, Niagara Falls and Utah's Hoodoos.
From Science Daily ● Apr. 20, 2026
Marineland, near the famed Niagara Falls, was once a profitable theme park.
From Barron's ● Nov. 26, 2025
For decades, Marineland was a destination for Canadian children and their parents who wanted an up-close look at ocean-life near Niagara Falls.
From BBC ● Oct. 11, 2025
“If you saw the entire country,” Royal said, “from the Atlantic to the Pacific, the great Niagara Falls and the Rio Grande, would you make a home here, in the woods of Indiana?”
From "The Underground Railroad: A Novel" by Colson Whitehead
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.