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Related to lough: Lough Neagh
1. A lake.
2. A bay or an inlet of the sea.
[Middle English, from Old English luh, ultimately from Old Irish loch.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
1. (Physical Geography) an Irish word for lake1
2. (Physical Geography) a long narrow bay or arm of the sea in Ireland
[C14: from Irish loch lake]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
n. Irish Eng.
1. a lake.
2. a partially landlocked or protected bay.
[1505–15; Hiberno-E sp. of Irish loch lake; see loch]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.