demesne vs acres

demesne and acres both are nouns.

Word	Noun	Adjective	Verb	Adverb
demesne	Yes	No	No	No
acres	Yes	No	No	No

As nouns, demesne and acres are synonyms defined as:

demesne and acres: extensive landed property (especially in the country) retained by the owner for his own use

Other synonyms of demesne include estate, land, landed estate.

demesne (noun)	acres (noun)
territory over which rule or control is exercised	extensive landed property (especially in the country) retained by the owner for his own use
extensive landed property (especially in the country) retained by the owner for his own use