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Guelph

1 American  
[gwelf] / gwɛlf /
Or Guelf

noun

  1. a member of the political party in medieval Italy and Germany that supported the sovereignty of the papacy against the German emperors: opposed to the Ghibellines.

  2. a member of a secret society in Italy in the early 19th century that opposed foreign rulers and reactionary ideas.


Guelph 2 American  
[gwelf] / gwɛlf /

noun

  1. a city in SE Ontario, in S Canada.


Guelph 1 British  
/ ɡwɛlf /

noun

  1. a member of the political faction in medieval Italy that supported the power of the pope against the German emperors Compare Ghibelline

  2. a member of a secret society in 19th-century Italy opposed to foreign rule

"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

Guelph 2 British  
/ ɡwɛlf /

noun

  1. a city in Canada, in SE Ontario. Pop: 106 920 (2001)

"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

Other Word Forms

Etymology

Origin of Guelph

1570–80; < Italian Guelfo < Middle High German Welf name of founder of a princely German family

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The international project brought together researchers from the Wellcome Sanger Institute, the Ontario Veterinary College at the University of Guelph, the University of Bern, and several additional institutions.

From Science Daily May 24, 2026

Avocados may also help people manage obesity and even prevent diabetes, according to researchers at the University of Guelph, near Toronto.

From MarketWatch Feb. 7, 2026

Such measures are needed to bolster companies that are too uncertain to move ahead with projects, said Jim Jarrell, president of Linamar, an auto-parts and industrial-equipment manufacturer based in Guelph, Ontario.

From The Wall Street Journal Nov. 7, 2025

Michael von Massow, a professor of agriculture at Guelph University, said fruit juice prices have risen 7.5% from last year due to counter measures on American citrus.

From BBC Aug. 1, 2025

Florence was fortified against him, and the mutual hatred of Guelph and Ghibelline was easily renewed.

From Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 3 "Helmont, Jean" to "Hernosand" by Various

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