Firth of Forth vs Scotland

Firth of Forth and Scotland both are nouns.

Word	Noun	Adjective	Verb	Adverb
Firth of Forth	Yes	No	No	No
Scotland	Yes	No	No	No

Firth of Forth (noun)	Scotland (noun)
a large firth on the east coast of Scotland and the estuary of the Forth River; location of Edinburgh	one of the four countries that make up the United Kingdom of Great Britain and Northern Ireland; located on the northern part of the island of Great Britain; famous for bagpipes and plaids and kilts