noun
- A large firth on the east coast of Scotland and the estuary of the Forth River; location of Edinburgh. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). firth of forth. Retrieved September 21, 2026, from http://smartdefine.org/firth_of_forth/definitions/1226850 |
| Chicago | WordNet. 2010. "firth of forth" http://smartdefine.org/firth_of_forth/definitions/1226850 (accessed September 21, 2026). |
| Harvard | WordNet 2010, firth of forth, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/firth_of_forth/definitions/1226850>. |
| MLA | WordNet. "firth of forth" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/firth_of_forth/definitions/1226850> |