Dictionary.com
Thesaurus.com

O'Brien

American  
[oh-brahy-uhn] / oʊˈbraɪ ən /

noun

  1. Edna, born 1930, Irish novelist, short-story writer, and playwright.


O'Brien British  
/ əˈbraɪən /

noun

  1. Conor Cruise. 1917–2008, Irish diplomat and writer. As an Irish Labour MP he served in the coalition government of 1973–77, becoming a senator (1977–79). He edited the Observer (1978–81)

  2. Edna. born 1936, Irish novelist. Her books include The Country Girls (1960), Johnny I Hardly Knew You (1977), and In the Forest (2002)

  3. Flann, real name Brian O'Nolan. 1911–66, Irish novelist and journalist. His novels include At Swim-Two-Birds (1939) and the posthumously published The Third Policeman (1967). As Myles na Gopaleen he wrote a satirical column for the Irish Times

  4. Kerry. born 1945. Australian journalist and broadcaster

"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

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.

But taking Kharg and holding onto it "are two different things", stressed Professor Phillips O'Brien of the University of St Andrews in Scotland.

From Barron's • Mar. 30, 2026

“I am just trying to ensure we aren’t disparately treating any of our customer base,” Rodgers wrote to O’Brien on Feb. 5, 2013.

From Salon • Mar. 30, 2026

Three finalists - Luke Emmess, Mark O'Brien and Gareth Baty - made it through a series of culinary challenges, impressing not just judges Monica Galetti and Marcus Wareing but also high-profile Michelin-starred restaurateurs.

From BBC • Mar. 26, 2026

Robert Michael Morris, who played Mickey, Valerie’s hairdresser and best friend, in earlier seasons, passed away in 2017; Jack O’Brien, as Tommy, occupies a version of that space here.

From Los Angeles Times • Mar. 22, 2026

“I mean,” O’Brien said, “what exactly is the matter?”

From "145th Street: Short Stories" by Walter Dean Myers