Niagara
Americannoun
-
a river on the boundary between W New York and Ontario, Canada, flowing from Lake Erie into Lake Ontario. 34 miles (55 km) long.
-
Fort, a fort in W New York, at the mouth of the Niagara River.
-
(lowercase) anything taken as resembling Niagara Falls in force and relentlessness; avalanche.
a niagara of criticism.
-
Horticulture.
-
a variety of white grape, grown for table use.
-
the vine bearing this fruit.
-
noun
-
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)
-
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.
The fair featured electric lighting and electric streetcars powered by hydroelectricity generated by Niagara Falls, reflecting a moment when electricity was beginning to move from novelty toward widespread utility.
From The Wall Street Journal • May 16, 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
"Unfortunately, they're telling us they're burning the furniture to heat the house," Niagara Falls mayor Jim Diodati told Radio-Canada on Friday.
From BBC • Oct. 11, 2025
She signs them with things like, “Yours till Niagara Falls,” “Yours till the cookie crumbles,” or “Yours till the sea wears rubber pants to keep its bottom dry.”
From "Cat's Eye" by Margaret Atwood
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.
