2. Noun. A species of landscape that is flat and open. ¹
3. Noun. The level open countryside, as distinct from the mountains, forests or towns. ¹
4. Noun. (''agricultural'') common land; land that is not enclosed ¹
5. Noun. Someone who farms land that is not enclosed. ¹
6. Noun. A battlefield, especially when flat and open. ¹
7. Noun. A field of inquiry or study. ¹
8. Adjective. Flat or level and open, like a champian. ¹
9. Adjective. Level; equal; on a par with one another. ¹
10. Adjective. (''agricultural'') Of land that is not enclosed; of land that is common. ¹
11. Adjective. Pertaining to land that is not enclosed. ¹
¹ Source: wiktionary.com