From Longman Dictionary of Contemporary Englishmarshmarsh /mɑːʃ $ mɑːrʃ/ noun [countable, uncountable] SGan area of low flat ground that is always wet and soft → bog, swamp —marshy adjective The crane lives in marshy habitats.THESAURUSmarsh an area of low flat ground that is always wet and soft, that often has grasses or reeds growing in it but no treesThe low hills you can see are like islands surrounded by the marsh. Miles of salt marsh (=which has salt water under it because it is near the sea) stretched before us, reaching to the shores of the River Severn.Hackney Marshesthe rustling of the marsh grassswamp land that is always very wet or covered with a layer of water, that often has trees growing in it – used especially about areas in hot countriesthe swamps of FloridaLess than 200 years ago, the city was a swamp, infested by mosquitoes.bog an area of low wet muddy ground, sometimes with bushes or grasses growing in itHis foot started slowly sinking into the bog.The destruction of peat bogs is contributing to global warming, according to a report commissioned by Friends of the Earth. wetland an area of land that is partly covered with water, and that has grasses and other plants growing in it – often used about areas that are important to birds or wildlifeThe ecosystem of the world 's largest wetland, the Pantanal in southwest Brazil, is being threatened by tourists. wetland birdsfen a large area of low flat wet land – used especially about the area of this type of land in eastern England in Cambridgeshire and Lincolnshire, which is known as the FensHe grew up in the FensIntensive cultivation and continued drainage of the Fens further accelerates the degradation of the land.mire literary an area of wet muddy ground, which people and vehicles etc get stuck inThe wagon was stuck fast in the mire.The rain was turning the highway into a mire.
Examples from the Corpusmarsh• In winter resorts to damp grassland, fresh-water margins, marshes and estuaries, often in flocks.• You play over a salt marsh, or bayou, from tee to green.• But back on the marshes and fens, who was really to profit from this continual process of ever more intensive cultivation?• This happened with fatal consequences in 1953 when the Lee Wick wall collapsed sending water shooting over the marshes to Jaywick.• That's how I reached the marshes, and the churchyard.• The marsh was not like water, and the car didn't sink to. he bottom.• She caught a few words: marsh, explosion, death.Origin marsh Old English merisc, mersc