prairie
Synonym discussion
Sense: noun/1
Prairie, grassland, plain, and steppe all describe open land, but they do not create the same picture. Prairie usually points to the huge natural grass regions of North America, with wide skies and very few trees. Grassland is the broad general word and can describe similar land anywhere in the world. Plain mainly stresses flatness, so a plain may be grassy, sandy, or dry. Steppe is closer in shape to prairie, but it is usually used for the dry treeless regions of Eurasia and sounds more geographical. Say 'bison on the prairie,' but 'a broad coastal plain' and 'the Central Asian steppe.'
Etymology
English borrowed prairie from French, where it meant 'meadow'. The French word goes back to Latin 'pratum', meaning 'meadow' or 'grassy land'. In English, the meaning became more closely tied to the large open grasslands of North America.