United Kingdom of Great Britain and Northern Ireland vs fish slice

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

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

United Kingdom of Great Britain and Northern Ireland (noun)	fish slice (noun)
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 food turner with a broad blade used for turning or serving fish or other food that is cooked in a frying pan