• synonyms


[nahy-ag-ruh, -ag-er-uh]
  1. a river on the boundary between W New York and Ontario, Canada, flowing from Lake Erie into Lake Ontario. 34 miles (55 km) long.
  2. Niagara Falls.
  3. Fort, a fort in W New York, at the mouth of the Niagara River.
  4. (lowercase) anything taken as resembling Niagara Falls in force and relentlessness; avalanche: a niagara of criticism.
  5. Horticulture.
    1. a variety of white grape, grown for table use.
    2. the vine bearing this fruit.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for niagara

overabundance, torrent, deluge, stream, downpour, cascade, spate, tide, flood, waterfall, outburst, inundation, avalanche, barrage, cataclysm, glut, flow, surge, wave, tsunami

Examples from the Web for niagara

Contemporary Examples of niagara

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British Dictionary definitions for niagara


  1. a river in NE North America, on the border between W New York State and Ontario, Canada, flowing from Lake Erie to Lake Ontario. Length: 45 km (28 miles)
  2. a torrent
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for niagara


waterfall from Lake Erie to Lake Ontario, from a town name, perhaps from an Iroquoian language and meaning "a neck" (between two bodies of water); general sense of "a cataract, torrent" is attested from 1841; meaning " 'shower' of ringlets (true or false) in women's hair" is from 1864, also known as cataract curls.

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Online Etymology Dictionary, © 2010 Douglas Harper