Niagara vs waterfall

Niagara

noun
  • A flood, torrent, or outpouring, especially one of massive proportions. 

  • A Niagara grape. 

name
  • 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. 

waterfall

noun
  • A waterfall-like outpouring of liquid, smoke, etc. 

  • A flow of water over the edge of a cliff. 

  • Waterfall model 

  • The action of drinking from a vessel without touching it with the lips, considered more sanitary for a shared vessel. 

verb
  • To drink (something) from a container by pouring it from a height so as not to touch one's lips to the rim. 

  • To fall like a waterfall. 

  • Synonym of recycle 

How often have the words Niagara and waterfall occurred in a corpus of books? (source: Google Ngram Viewer )