smallholding vs United Kingdom of Great Britain and Northern Ireland

smallholding and United Kingdom of Great Britain and Northern Ireland both are nouns.

Word	Noun	Adjective	Verb	Adverb
smallholding	Yes	No	No	No
United Kingdom of Great Britain and Northern Ireland	Yes	No	No	No

smallholding (noun)	United Kingdom of Great Britain and Northern Ireland (noun)
a piece of land under 50 acres that is sold or let to someone for cultivation	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