"firth" in German firth Fjord Förde Meeresarm Detailed translations for "firth" firth 1. geology firth(also: fjord, fiord, fiard, inlet) der Fjord{masculine} firth(also: fjord, long narrow inlet) die Förde{feminine} 2. other firth der Meeresarm{masculine} English synonyms for "firth" firth {n} J. R. Firth John Rupert Firth