What does marsh mean?
A marsh is an area of low-lying land that is regularly covered by water or saturated with moisture. Marshes commonly support grasses, sedges, reeds, and specialized wildlife, and they may be fresh, coastal, or brackish depending on their location. The word can also refer to a particular patch of wet ground, although “marsh” usually suggests a wider landscape or habitat rather than simply a muddy place. Marsh environments are ecologically significant because their water, soils, and vegetation create distinctive communities of plants and animals. The term is used in both British and American English and appears in established combinations such as “salt marsh” and “marsh grass.” It is related etymologically to other words associated with water or wetness, including “mere” and “mire.”
An area of low-lying, often periodically flooded land that supports wetland vegetation.
"Wild geese gathered in the marsh before migrating south."
The word is often used in British and American place names, such as “the Somerset Levels” and “the Dismal Swamp,” though those are proper names rather than examples of the word itself.
To arrange or line up troops or other people, especially in a formal formation.
"The officer marshaled the soldiers into two columns."
This is a rare or archaic verb. In modern English, “marshal” is much more common.
The standard plural is “marshes,” used for individual wetland areas or multiple wetland landscapes.
"The region contains several marshes that provide important habitat for migratory birds."
A marsh may look still and peaceful, but its saturated ground and winding channels create some of nature’s most specialized habitats.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does marsh come from?
The modern English word descends from Old English mersc, meaning marshy or swampy land, which developed from a Germanic root associated with water or wet ground. The word is related to forms in other Germanic languages, including Dutch marsch and German Marsch, both meaning a marsh or similar wetland. Its wider relatives include English words such as “mere” and “mire,” which likewise belong to a family of vocabulary connected with water and wet places.
Related word forms
How marsh is actually used
“Marsh” is a standard English word in British, American, and other varieties. In British English, it is especially common in place names, while American usage also includes expressions such as “salt marsh.”
Easily confused with marsh
A marsh is a type of wetland landscape, whereas a mire is chiefly a patch of very wet, muddy ground.
A marsh is usually a relatively open wetland with grasses or reeds, while a swamp is often more densely wooded.