: land that is always wet and often partly covered with water [noncount] ▪ The area is mostly swamp. [=swampland] [count] ▪ Alligators live in the lowland swamps.
— swampy/ˈswɑ:mpi/adjective, swamp·i·er;swamp·i·est [also more swampy; most swampy] ▪swampy land