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  • firth
    firth
    noun
    a long, narrow indentation of the seacoast.
  • Firth
    Firth
    noun
    John Rupert, 1890–1960, English linguist.
Synonyms

firth

1 American  
[furth] / fɜrθ /
Also frith

noun

Chiefly Scot.
  • firths
    plural
  1. a long, narrow indentation of the seacoast.


Firth 2 American  
[furth] / fɜrθ /

noun

  1. John Rupert, 1890–1960, English linguist.


firth British  
/ fɜːθ /

noun

  1. a relatively narrow inlet of the sea, esp in Scotland

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

firth Scientific  
/ fûrth /
  1. A long, narrow inlet of the sea. Firths are usually the lower part of an estuary, but are sometimes fjords.


Other Word Forms

Derived Forms

Inflected Forms

Nouns

Etymology

Origin of firth

First recorded in 1400–50; late Middle English ( Scots ), from Old Norse firth-, stem of fjǫrthr “fjord”

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

He said he would have expected to have been told in advance about steps to accommodate the ship in the firth.

From BBC Jan. 26, 2026

On the distant horizon was a cluster of faint street lights, a small town hunkered on the far side of the firth.

From The New Yorker Jan. 6, 2020

After a slow start County went on to dominate with Ivan Sproule scoring his firth goal in as many starts to give County the lead 11 minutes from the break.

From The Guardian Feb. 23, 2013

The firth is a 20-mile- long, eight-mile-wide strip of water dividing the islands with the mainland.

From BusinessWeek Jul. 5, 2011

He could see the harbor too, and had watched Merry Midwife make her way down the firth.

From "A Dance with Dragons" by George R. R. Martin

On the comedy podcast, Egerton went on to describe his Kingsman: The Secret Service and Kingsman: The Golden Circle co-star Colin Firth as a "fatherly figure".

From BBC Aug. 11, 2026

The films – released in 2014 and 2017 – saw Egerton play Gary "Eggsy" Unwin, while Firth played his mentor Harry Hart.

From BBC Aug. 11, 2026

Gannet chicks taken from Bass Rock in the Firth of Forth were sold in a market in Edinburgh.

From BBC Aug. 3, 2026

“This was a huge counterparty to a number of big banks who seem to have absolutely no idea what was going on,” said Edward Firth, a banking analyst at KBW in London.

From The Wall Street Journal May 6, 2026

Jason, because he’s handsome in a British film star kind of way, not a Depp or a Pitt, but a Firth, or a Jason Isaacs.

From "The Girl on the Train" by Paula Hawkins

Now Kari and his fellows sailed south through Scotland's firths, and there they found men from the Southern isles.

From The Story of Burnt Njal: the great Icelandic tribune, jurist, and counsellor by Unknown

Thence he sailed west, round Wales, and so north, through Scotland's firths, and did not stay his course till he came to Thraswick in Caithness, to master Skeggi's house.

From The Story of Burnt Njal: the great Icelandic tribune, jurist, and counsellor by Unknown

Gestumblindi said: Who are the brides who go about the reefs and trail along the firths?

From Stories and Ballads of the Far Past Translated from the Norse (Icelandic and Faroese) with Introductions and Notes by Nora Kershaw

These three lesser firths, together with the main creek that flows into each above the point where the tide reaches, are respectively the Pahi, the Paparoa, and the Matakohe.

From Brighter Britain! (Volume 1 of 2) or Settler and Maori in Northern New Zealand by William Delisle Hay

It must have travelled over a country unknown to it, and have crossed the firths of Forth and Tay.

From Natural History in Anecdote Illustrating the nature, habits, manners and customs of animals, birds, fishes, reptiles, etc., etc., etc. by Various

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