estate vs res publica

estate and res publica both are nouns.

Word	Noun	Adjective	Verb	Adverb
estate	Yes	No	No	No
res publica	Yes	No	No	No

estate (noun)	res publica (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 politically organized body of people under a single government
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