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.
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
A trip to the mailbox could become a tumbledown Niagara Falls.
From The Wall Street Journal • Jan. 16, 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
Fred was the baby, and was train sick all the way from Niagara Falls to the Golden Gate.
From "Cheaper by the Dozen" by Frank B. Gilbreth Jr. and Ernestine Gilbreth Carey
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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.