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Neagh

British

/ neɪ /

noun

a lake in Northern Ireland, in SW Co Antrim: the largest lake in the British Isles. Area: 388 sq km (150 sq miles)

"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.

A Lough Neagh Action Plan is in place to tackle the problem over the course of several years.

From BBC • Apr. 15, 2026

In recent years large blooms of potentially toxic blue-green algae in Lough Neagh – caused in large part by long-term pollution – have grabbed the headlines.

From BBC • Sep. 24, 2025

Blue-green algae has been present in Lough Neagh all summer.

From BBC • Sep. 24, 2025

The algae has been detected more than 100 times across Northern Ireland this year, with the majority of sightings in Lough Neagh and the Lower Bann, as well as Lough Erne.

From BBC • Sep. 9, 2025

Mam didn’t look out the window at Lough Neagh.

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