estate vs UK

estate and UK both are nouns.

Word	Noun	Adjective	Verb	Adverb
estate	Yes	No	No	No
UK	Yes	No	No	No

estate (noun)	UK (noun)
a major social class or order of persons regarded collectively as part of the body politic of the country (especially in the United Kingdom) and formerly possessing distinct political rights	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
extensive landed property (especially in the country) retained by the owner for his own use
everything you own; all of your assets (whether real property or personal property) and liabilities