General terms:
* Prairie: This is the most common term, especially in North America.
* Steppe: This term is more common in Eurasia.
* Savanna: While savannas typically have scattered trees, some areas may be more open and resemble grasslands.
* Pasture: This term is used for land used for grazing livestock.
* Meadow: This term is usually used for a smaller, wetter grassland.
Specific terms:
* Pampas: This refers to the grasslands of South America.
* Veld: This refers to the grasslands of South Africa.
* Downs: This term is used for the grasslands of Australia.
* Heath: This term is used for a type of grassland with low-growing shrubs.
* Tundra: This term is used for a treeless plain found in arctic or alpine regions.
The best term to use depends on the specific context.