Rediffusion vs United Kingdom of Great Britain and Northern Ireland

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

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

Rediffusion (noun)	United Kingdom of Great Britain and Northern Ireland (noun)
a system for distributing radio or tv programs	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