Added 9 October 2026 acres /ˈeɪ.kəz/ noun Categories: Money & PropertyEveryday Words noun ! Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about acres at Wordnik → Where our words come from → Extensive landed property (especially in the country) retained by the owner for his own use. the family owned a large estate on Long Island Related Words: demesneestatelandfarmsgardenshectarehectaresshoreshorelinesurfacesurfaces Back to today's word