Hooray Henry vs United Kingdom of Great Britain and Northern Ireland

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

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

Hooray Henry (noun)	United Kingdom of Great Britain and Northern Ireland (noun)
a lively and ineffectual upper-class young man	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