A flood, torrent, or outpouring, especially one of massive proportions.
A Niagara grape.
A regional municipality on the Niagara Peninsula, southern Ontario, Canada, colloquially known as the Niagara Region.
A ghost town in Western Australia.
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.
A city and town in Wisconsin.
The Niagara Falls.
A town in New York.
A city and village in North Dakota.
A ghost town in British Columbia, Canada.
That which overflows; the excess or side effect.
The spread of infectious disease between different species of animal and particularly to humans.