Definitions from Wiktionary (Niagara)

▸ noun:  A river (the Niagara River) which flows from Lake Erie, over Niagara Falls into Lake Ontario; the geographical region of the United States and Canada in proximity to this river.
▸ noun:  A ghost town in British Columbia, Canada.
▸ noun:  A regional municipality on the Niagara Peninsula, southern Ontario, Canada, colloquially known as the Niagara Region.
▸ noun:  A ghost town in the Shire of Menzies, Goldfields-Esperance region, Western Australia.
▸ noun:  A town in New York.
▸ noun:  A city and village in North Dakota.
▸ noun:  A city and town in Wisconsin.
▸ noun:  (metonymically) The Niagara Falls.
▸ noun:  (figuratively) A flood, torrent, or outpouring, especially one of massive proportions.
▸ noun:  A Niagara grape.
▸ verb:  To flood; to pour in a torrent.

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