noun
firth
furth
noun
1
A narrow inlet of the sea, especially in Scotland, or a river estuary.
"The ferry crossed the Firth of Forth on its way to Edinburgh."
How to Use Firth
Learner’s notesIn plain EnglishA sea inlet or river mouth, mostly used in Scottish place names.
Easily confused with
Common pairings
Firth of Clyde
Firth of Forth
Word Forms
firths plural, Firths plural
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The ferry crossed the _____ of Forth on its way to Edinburgh.
Etymology
From Scots firth, related to Old Norse fjǫrðr; a doublet of the word fjord.