Scotland vs UK

Scotland and UK both are nouns.

Word	Noun	Adjective	Verb	Adverb
Scotland	Yes	No	No	No
UK	Yes	No	No	No

Scotland (noun)	UK (noun)
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	a monarchy in northwestern Europe occupying most of the British Isles; divided into England and Scotland and Wales and Northern Ireland; `Great Britain' is often used loosely to refer to the United Kingdom