cotter
1 Americannoun
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a pin, wedge, key, or the like, fitted or driven into an opening to secure something or hold parts together.
verb (used with object)
noun
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any part, such as a pin, wedge, key, etc, that is used to secure two other parts so that relative motion between them is prevented
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short for cotter pin
verb
noun
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Also called: cottier. English history a villein in late Anglo-Saxon and early Norman times occupying a cottage and land in return for labour
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Also called: cottar. a peasant occupying a cottage and land in the Scottish Highlands under the same tenure as an Irish cottier
Etymology
Origin of cotter1
1300–50; Middle English coter; akin to late Middle English coterell iron bracket; of uncertain origin
Origin of cotter2
1175–1225; Middle English cotere < Anglo-French cot ( i ) er; see cot 2, -er 2
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.
"The Brumbies are well-organised and have started their season well. They will be tough competitors, particularly at home, but we are up for the challenge," said coach Vern Cotter.
From Barron's • Feb. 26, 2026
Mark Cotter, mitigating, said a lack of help for Button created a "terrifying crisis for her".
From BBC • Oct. 17, 2025
Junior opposite hitter Sophia Cotter is committed to Princeton.
From Los Angeles Times • Aug. 21, 2025
In a victim impact statement, former director Mark Cotter said that the stress on him had led to his GP making him take four to six weeks off work.
From BBC • Jul. 25, 2025
During radio calls from Hall at 5:36, and again at 5:57, Cotter implored his mate to leave Hansen and come down alone.
From "Into Thin Air" by Jon Krakauer
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.