bumf vs United Kingdom of Great Britain and Northern Ireland

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

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

bumf (noun)	United Kingdom of Great Britain and Northern Ireland (noun)
reading materials (documents, written information) that you must read and deal with but that you think are extremely boring	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