preceptor vs United Kingdom of Great Britain and Northern Ireland

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

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

preceptor (noun)	United Kingdom of Great Britain and Northern Ireland (noun)
teacher at a university or college (especially at Cambridge or Oxford)	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