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Niagara

American  
[nahy-ag-ruh, -ag-er-uh] / naɪˈæg rə, -ˈæg ər ə /

noun

  1. a river on the boundary between W New York and Ontario, Canada, flowing from Lake Erie into Lake Ontario. 34 miles (55 km) long.

  2. Niagara Falls.

  3. Fort, a fort in W New York, at the mouth of the Niagara River.

  4. (lowercase) anything taken as resembling Niagara Falls in force and relentlessness; avalanche.

    a niagara of criticism.

  5. Horticulture.

    1. a variety of white grape, grown for table use.

    2. the vine bearing this fruit.

Niagara British  
/ naɪˈæɡrə, -ˈæɡərə /

noun

  1. 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)

  2. a torrent

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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.

They divorced soon after and his father moved to Niagara Falls, N.Y., to oversee the construction of the Skylon Tower, which was financed in part by his Hershey shareholdings.

From The Wall Street Journal • Feb. 28, 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

Marineland, near the famed Niagara Falls, was once a profitable theme park.

From Barron's • Nov. 26, 2025

After a few warmer days, on March 29 it turned so cold that around midnight an ice wedge stopped the constant crash of New York’s Niagara Falls.

From "American Spirits" by Barb Rosenstock

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.