Niagara
Americannoun
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a river on the boundary between W New York and Ontario, Canada, flowing from Lake Erie into Lake Ontario. 34 miles (55 km) long.
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Fort, a fort in W New York, at the mouth of the Niagara River.
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(lowercase) anything taken as resembling Niagara Falls in force and relentlessness; avalanche.
a niagara of criticism.
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Horticulture.
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a variety of white grape, grown for table use.
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the vine bearing this fruit.
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noun
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a river in NE North America, on the border between W New York State and Ontario, Canada, flowing from Lake Erie to Lake Ontario. Length: 45 km (28 miles)
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a torrent
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
The visit was due to include 100 children and 27 scout volunteers, taking in areas including Toronto and Niagara, in either July or August.
From BBC • Apr. 8, 2026
In western New York state, the Niagara County sheriff, a Republican, said in recent days that his agency will no longer hold people detained by ICE unless there is a criminal charge or judicial warrant.
From The Wall Street Journal • Jan. 25, 2026
Marineland, near the famed Niagara Falls, was once a profitable theme park.
From Barron's • Nov. 26, 2025
I look back on it and what comes to me are people going over Niagara Falls in barrels.
From "The Secret Life of Bees" by Sue Monk Kidd
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.
