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Ulster

American  
[uhl-ster] / ˈʌl stər /

noun

  1. a former province in Ireland, now comprising Northern Ireland and a part of the Republic of Ireland.

  2. a province in N Republic of Ireland. 3,123 sq. mi. (8,090 sq. km).

  3. Informal. Northern Ireland.

  4. (lowercase) a long, loose, heavy overcoat, originally of Irish frieze, now also of any of various other woolen cloths.

Ulster 1 British  
/ ˈʌlstə /

noun

  1. a province and former kingdom of N Ireland: passed to the English Crown in 1461; confiscated land given to English and Scottish Protestant settlers in the 17th century, giving rise to serious long-term conflict; partitioned in 1921, six counties forming Northern Ireland and three counties joining the Republic of Ireland. Pop (three Ulster counties of the Republic of Ireland): 46 714 (2002); (six Ulster counties of Northern Ireland): 1 702 628 (2003 est). Area (Republic of Ireland): 8013 sq km (3094 sq miles); (Northern Ireland): 14 121 sq km (5452 sq miles)

  2. an informal name for Northern Ireland

"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
ulster 2 British  
/ ˈʌlstə /

noun

  1. a man's heavy double-breasted overcoat with a belt or half-belt at the back

"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
Ulster Cultural  

  1. A historic division of Ireland, located in the northeastern part of the island. Six of its nine counties are in Northern Ireland. (See Republic of Ireland.)

Other Word Forms

  • Ulsterite noun

Etymology

Origin of ulster

C19: so called because it was first produced in Northern Ireland

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.

That heritage gave both him and the backcountry settlers he epitomized their combative sense of equality and dignity—rooted in the history of British impositions on their ancestral lands in Ulster.

From The Wall Street Journal • Apr. 1, 2026

He arrivedpenniless but was given a warm welcome by his hosts, when he was allowed to bunk up in the judge's house in Dundonald and was treated to an Ulster fry.

From BBC • Mar. 30, 2026

Speaking on Good Morning Ulster, he said the cuts "make a welcome break" but said they are "minimalist".

From BBC • Mar. 25, 2026

Deputy president of the Ulster Farmers' Union, John McLenaghan, said a changing climate is "compressing" an already-busy seasonal schedule.

From BBC • Mar. 19, 2026

He guarded the house and regions beyond and became a great hero, the Hound of Ulster itself.

From "Angela's Ashes: A Memoir" by Frank McCourt

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.