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
A trip to the mailbox could become a tumbledown Niagara Falls.
From The Wall Street Journal ● Jan. 16, 2026
Corletto returned to McClurkin’s church in the summer of 2013 and joined the singer during a trip to Niagara Falls.
From Los Angeles Times ● Jan. 6, 2026
Mr Stowe, originally from Solihull, escaped barefoot with his wife, son, and two cats at about 04:10 GMT after he woke and heard rushing water "equivalent to the Niagara Falls".
From BBC ● Dec. 24, 2025
Then the film cameras chopped short and the theaters turned dark, and the print presses trickled down from a great Niagara of reading matter to a mere innocuous dripping of ‘pure’ material.
From "The Martian Chronicles" by Ray Bradbury
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.
