General terms:
* Meadow: A field of grass, often with wildflowers.
* Pasture: Land used for grazing livestock.
* Field: A large, open area of land, often used for agriculture.
* Lawn: A cultivated area of grass kept short for aesthetic purposes, typically around a house.
* Green: A grassy area in a park or public space.
* Prairie: A large, flat, grassy area of land, especially in North America.
* Savanna: A grassy plain with scattered trees, especially in Africa.
* Steppe: A grassy plain in central Asia.
More specific terms:
* Common: A shared grassy area in a village or town.
* Greenbelt: A strip of land that is kept undeveloped and used for recreation.
* Park: A large, open space with various features, including grassy areas.
* Playfield: A grassy area used for sports and recreational activities.
* Picnic area: A grassy area designed for picnicking.
The best word to use will depend on the context. For example, "meadow" would be appropriate for a wild, grassy area, while "lawn" would be used for a manicured grassy area around a house.
