waterfall in Canada is the Horseshoe Falls; in the United States it is the American Falls
"The mist rising from Niagara dampened our faces as we watched the massive volume of water crash down at both the Canadian and American sides."
a river flowing from Lake Erie into Lake Ontario; forms boundary between Ontario and New York
"The majestic Niagara River flows south from Lake Erie to form the border between Ontario and New York before emptying into Lake Ontario."
A flood, torrent, or outpouring, especially one of massive proportions.
"The sudden release of water from the broken dam created a Niagara that swept away everything in its path."
In plain English: Niagara is the famous waterfall on the border between Canada and the United States that drops over 167 feet into a deep gorge.
"The thundering roar of Niagara brought tears to everyone's eyes."
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.
"The travelers hiked along the Niagara riverbank to get a closer look at the cascading water before crossing into the Canadian side of the region."
The word comes from an Iroquoian language, likely derived from a Mohawk term meaning "neck of land." Early maps applied this name to both the local tribe and the famous waterfall in their territory.