Great Britain vs knock-on effect

Great Britain and knock-on effect both are nouns.

Word	Noun	Adjective	Verb	Adverb
Great Britain	Yes	No	No	No
knock-on effect	Yes	No	No	No

Great Britain (noun)	knock-on effect (noun)
an island comprising England and Scotland and Wales	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