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Definition of niagara falls

niagara falls

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• noun

1

North American A massive and renowned group of three waterfalls spanning the international border between the Canadian province of Ontario and the US state of New York, situated on the Niagara River.

2

North American The name of two twin cities situated adjacent to the famous waterfalls, with one located in Niagara County, New York, USA, and the other in the Golden Horseshoe region of Ontario, Canada.

Synonyms
View all synonyms for niagara falls

Word Nuance & Usage

The term is used interchangeably to refer to the famous natural waterfalls themselves as well as the two distinct twin cities situated immediately adjacent to them in both Canada and the United States.

• Nearby Words

ngoko river
niacin
niagara
niagara falls
niagara river
niamey
niandan

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Niagara falls. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/niagara-falls
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