Great Britain vs square-bashing

Great Britain and square-bashing both are nouns.

Word	Noun	Adjective	Verb	Adverb
Great Britain	Yes	No	No	No
square-bashing	Yes	No	No	No

Great Britain (noun)	square-bashing (noun)
an island comprising England and Scotland and Wales	drill on a barracks square
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