rod vs United Kingdom of Great Britain and Northern Ireland

rod and United Kingdom of Great Britain and Northern Ireland both are nouns.

Word	Noun	Adjective	Verb	Adverb
rod	Yes	No	No	No
United Kingdom of Great Britain and Northern Ireland	Yes	No	No	No

rod (noun)	United Kingdom of Great Britain and Northern Ireland (noun)
any rod-shaped bacterium	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
a long thin implement made of metal or wood
a gangster's pistol
a visual receptor cell that is sensitive to dim light
a linear measure of 16.5 feet
a square rod of land