Firth is a word in the English and Scots languages used to denote various coastal waters in the United Kingdom, predominantly within Scotland. In the Northern Isles, it more often refers to a …

The Economist, 4 Dec. 2019 Gray and harbor seals are a common sight in this firth, or estuary, where several major rivers meet the North Sea. National Geographic, 16 Feb. 2017

The attention devoted to the firth depends on operational factors and on what is needed elsewhere in the patrol area.

Definition of firth noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

firth (fɜːθ) or frith n (Physical Geography) a relatively narrow inlet of the sea, esp in Scotland [C15: from Old Norse fjörthr fiord]

Jun 24, 2025 · firth (plural firths) (chiefly Northern England, Scotland) Alternative form of frith (“a forest used for hunting; a (small) wood; wooded country; land covered mainly by brushwood ”).

Sep 21, 2025 · The term firth is closely related to a fjord, though it typically refers to those coastal inlets within Scotland or Northern Europe. Firths can be expansive or somewhat narrow, and …

May 16, 2018 · The firth is named after Scotland’s largest river, River Tay, that discharges its waters into the Firth of Tay. Other firths found in Scotland include the Dornoch Firth, the Firth …

FIRTH definition: a long, narrow indentation of the seacoast. See examples of firth used in a sentence.

Definition A firth is an estuary or a narrow inlet of the sea, often characterized by its coastal geography.