go-slow vs Great Britain

go-slow and Great Britain both are nouns.

Word	Noun	Adjective	Verb	Adverb
go-slow	Yes	No	No	No
Great Britain	Yes	No	No	No

go-slow (noun)	Great Britain (noun)
a form of protest by workers in which they deliberately slow down in order to cause problem for their employers	an island comprising England and Scotland and Wales
	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