\ˈfərth \

Definition of firth 

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Synonyms for firth


arm, bay, bight, cove, creek [chiefly British], estuary, fjord (also fiord), gulf, inlet, loch [Scottish]

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Examples of firth in a Sentence

the Firth of Forth in Scotland

Recent Examples on the Web

Gray and harbor seals are a common sight in this firth, or estuary, where several major rivers meet the North Sea. National Geographic, "What to Do When a Wild Seal Hops On Your Kayak," 16 Feb. 2017 Kevin Harvick was firth, followed by fellow Ford drivers Ricky Stenhouse Jr. and Joey Logano. Mark Long, The Seattle Times, "Earnhardt lands pole for what could be Cup finale at Daytona," 30 June 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'firth.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of firth

14th century, in the meaning defined above

History and Etymology for firth

Middle English, from Old Norse fjǫrthr — more at ford

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The first known use of firth was in the 14th century

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More Definitions for firth


\ˈfərth \

Kids Definition of firth

: a narrow arm of the sea

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Comments on firth

What made you want to look up firth? Please tell us where you read or heard it (including the quote, if possible).


obstinately defiant of authority

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