Dictionary.com
Thesaurus.com

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.

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

From BBC • Apr. 19, 2026

Scientists have previously analysed the lough bed and found deep scarring.

From BBC • Apr. 15, 2026

However, it is likely to be several years before these or any of the other potential solutions could become active, or have a direct impact on the lough.

From BBC • Sep. 9, 2025

The meeting follows a third summer of blue-green algae blooms, which have covered the lough.

From BBC • Sep. 9, 2025

We’d fish for eels and fry them in a pan not like Cuchulain, who would pluck them from the lough and swallow them, wriggling, because there’s great power in an eel.

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

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "lough" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com