Irish Sea

American

noun

a part of the Atlantic Ocean between Ireland and England.

Irish Sea British

noun

an arm of the North Atlantic Ocean between Great Britain and 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

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:

Irish Sea

St. Patrick offered evocative details of slaving and missionary work in the lands around the Irish Sea.

From The Wall Street Journal ● Jul. 7, 2026

Martin, who just last Friday hosted Starmer in his home town of Cork for a UK-Ireland summit, was quick to defend his colleague across the Irish Sea.

From BBC ● Mar. 18, 2026

The beach is a good place to watch ships sailing out from the mouth of the Mersey estuary into the Irish Sea.

From BBC ● Feb. 13, 2026

Stretching east to west from the North Sea to the Irish Sea, Hadrian's Wall featured a series of forts and towers placed at regular intervals.

From Science Daily ● Dec. 21, 2025

He says the Irish Sea was rough and when he leaned over the side his teeth dropped out.

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