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Niagara Falls

American  

noun

  1. 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.

  2. a city in W New York, on the U.S. side of the falls.

  3. a city in SE Ontario, on the Canadian side of the falls.


Niagara Falls British  

noun

  1. (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

  2. (functioning as singular) a city in W New York State, situated at the falls of the Niagara River. Pop: 78 815 (2001)

  3. (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)

"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

Niagara Falls Cultural  
  1. Waterfall in western New York state and southern Ontario, Canada.


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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.

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

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

From Barron's • Nov. 26, 2025

"My income's taken a huge hit in the past couple of weeks," she told BBC News from her home in Niagara Falls.

From BBC • Jul. 2, 2025

Before we returned to Harvard, I convinced my parents to take a detour to Niagara Falls.

From "Educated" by Tara Westover