United Kingdom of Great Britain and Northern Ireland vs Teddy boy

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

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

United Kingdom of Great Britain and Northern Ireland (noun)	Teddy boy (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 tough youth of 1950's and 1960's wearing Edwardian style clothes