Scots An arm of the sea similar to a fjord. (noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "loch" in a sentence
"Their island is separated by a narrow loch from the Irish mainland."
"Steve Feltham, 44, who has spent 16 years watching the loch from a converted mobile library on its southern shore, believes that there were once as many as 30 mysterious creatures in the loch but that they are gradually dying off, because of old age."
"The margins of the loch were a riot of colour – the bright yellow of the bog asphodel contrasting with the red, greens and yellows of the sphagnum mosses."