Definition of "firth" [firth]

• Scots A long, narrow inlet of the sea. (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.

• "The problem with this back-and-firth is that it doesn’t really address the issues at hand."
• "We all embarked in the barge and crossed over the firth, which is in this place nearly a mile broad, to Castro Pol, the first town in the Asturias."
• "A firth is a Lowland word for coastal waters such as a bay, an inlet or a strait."