knock-on effect vs United Kingdom of Great Britain and Northern Ireland

knock-on effect and United Kingdom of Great Britain and Northern Ireland both are nouns.

Word	Noun	Adjective	Verb	Adverb
knock-on effect	Yes	No	No	No
United Kingdom of Great Britain and Northern Ireland	Yes	No	No	No

knock-on effect (noun)	United Kingdom of Great Britain and Northern Ireland (noun)
a secondary or incidental effect	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