Great Britain vs ludo

Great Britain and ludo both are nouns.

Word	Noun	Adjective	Verb	Adverb
Great Britain	Yes	No	No	No
ludo	Yes	No	No	No

Great Britain (noun)	ludo (noun)
an island comprising England and Scotland and Wales	a simple board game in which players move counters according to the throw of dice
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