- an extensive, level or slightly undulating, mostly treeless tract of land in the Mississippi valley, characterized by a highly fertile soil and originally covered with coarse grasses, and merging into drier plateaus in the west.
- a tract of grassland; meadow.
- (in Florida) a low, sandy tract of grassland often covered with water.
- wet grassland; marsh.
- a steam locomotive having a two-wheeled front truck, six driving wheels, and a two-wheeled rear truck.
- a treeless grassy plain of the central US and S Canada
