Acres noun – Extensive landed property (especially in the country) retained by the owner for his own use. Grassland and acres are semantically related. In some cases you can use "Grassland" instead a noun "Acres".
Grassland noun – A broad area of level or rolling treeless country. Acres and grassland are semantically related. Sometimes you can use "Acres" instead a noun "Grassland". Nearby Words: grass, grassy, grassed