firth
word in the Lowland Scots language and in English used to denote various coastal waters in Scotland and England
Firth of Clyde
mouth or estuary of the River Clyde, Scotland, UK
Moray Firth
inlet near Inverness, Aberdeenshire, Scotland, UK
Firth of Forth
estuary of Scotland's River Forth
Firth of Tay
firth in Scotland