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  • ou
    ou
    noun
    a rare Hawaiian honeycreeper, Psittirostra psittacea, having an olive-green body, a parrotlike bill, and in the male a bright yellow head.
  • OU
    OU
    abbreviation
    the Open University

ou

American  
[oh-oo] / ˈoʊˈu /
Or 'o'u

noun

  1. a rare Hawaiian honeycreeper, Psittirostra psittacea, having an olive-green body, a parrotlike bill, and in the male a bright yellow head.


OU 1 British  

abbreviation

  1. the Open University

  2. Oxford University

"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

ou 2 British  
/ əʊ /

noun

  1. slang a man, bloke, or chap

"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

Etymology

Origin of ou

First recorded in 1885–90; from Hawaiian ʿōʿū


Compare meaning

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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:

"They say that 'C'etait ca ou mourir' was written by an artificial intelligence. That's slander and heresy," Orelien said in a statement Tuesday.

From Barron's ● Oct. 14, 2026

Fnac, one of France’s largest booksellers, gave “C’etait ça ou Mourir” its novel of the year award.

From The Wall Street Journal ● Sep. 24, 2026

In the meantime, ou might even find it more empowering to treat yourself to something nice instead of waiting for the perfect gift from your partner.

From Slate ● Nov. 3, 2023

“Tout — ou rien,” replies the king: “all — or nothing.”

From New York Times ● Feb. 25, 2022

The work was titled Le Monde, ou Traité de la Lumière, and it was on the verge of being published when news of Galileo’s trial and conviction for heresy reached Holland.

From "The Scientists" by John Gribbin

Friedman led the study alongside Karen Jonscher, Ph.D., associate professor of biochemistry and physiology in the OU College of Medicine.

From Science Daily ● Feb. 8, 2026

OU has not publicly commented beyond acknowledging the grade appeal process.

From Salon ● Nov. 30, 2025

At OU, he is equal in rank to coach Brent Venables.

From The Wall Street Journal ● Oct. 10, 2025

Creative students came to OU from around the world.

From Los Angeles Times ● Aug. 6, 2025

MAIS, OU There’s no excuse for mangling words that come from foreign languages.

From "Woe Is I" by Patricia T. O'Conner

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