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lough

American  
[lok, lokh] / lɒk, lɒx /

noun

Irish English.
  1. a lake.

  2. a partially landlocked or protected bay; a narrow arm of the sea.


lough British  
/ lɒx, lɒk /

noun

  1. an Irish word for lake 1

  2. a long narrow bay or arm of the sea in 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

Etymology

Origin of lough

1505–15; Anglo-Irish spelling of Irish loch lake; compare Middle English low, lough ( e ), logh ( e ), Old English (Northumbrian) lūh < British Celtic *lux- (> Welsh llwch (obsolete) lake, Old Breton luh, Breton louc’h ), apparently < early Irish; see loch

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:

Gerry Darby from the Lough Neagh Partnership said because six major rivers and a number of smaller rivers flow into the lough, water pollution incidents ultimately had a domino effect.

From BBC Jul. 14, 2026

Nicole Minogue, who was at the event, said she feels the lough is undervalued.

From BBC Apr. 19, 2026

Muir acknowledged that there was a "concern about raw sewage being pumped" into the lough.

From BBC Apr. 14, 2026

The Office for Environmental Protection has launched an investigation, expressing concern about the "serious degradation" of the lough.

From BBC Jan. 9, 2026

Hope in the fact that he could learn and survive and take care of himself. lough hope, he thought that night.

From "Hatchet" by Gary Paulsen

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