doorknob vs United Kingdom

doorknob and United Kingdom both are nouns.

Word	Noun	Adjective	Verb	Adverb
doorknob	Yes	No	No	No
United Kingdom	Yes	No	No	No

doorknob (noun)	United Kingdom (noun)
a knob used to release the catch when opening a door (often called `doorhandle' in Great Britain)	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