noun, often attributive
\ ˈmärsh How to pronounce marsh (audio) \

Definition of marsh

 (Entry 1 of 2)

: a tract of soft wet land usually characterized by monocotyledons (such as grasses or cattails)


biographical name
\ ˈmärsh How to pronounce Marsh (audio) \

Definition of Marsh (Entry 2 of 2)

Dame (Edith) Ngaio \ ˈnī-​(ˌ)ō How to pronounce ˈnī-(ˌ)ō (audio)\ 1899–1982 New Zealand writer

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Synonyms for marsh

Synonyms: Noun

bog, fen, marshland, mire, moor, morass, muskeg, slough (also slew), swamp, swampland, wash, wetland

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Examples of marsh in a Sentence


a wide expanse of marsh the marshes along the coast support a remarkable profusion of plants and animals

Recent Examples on the Web: Noun

Venture just outside of Stone Lake for a tour of one of the several marshes. Nancy Ngo, Twin Cities, "These festivals, ongoing exhibits and community activities offer months of entertainment," 14 Sep. 2019 As the Trump administration relaxes rules protecting wetlands and streams, communities around the bay have already begun identifying areas where tidal marshes can be expanded, restored or re-created. Peter Fimrite,, "New maps show how little is left of West Coast estuaries," 17 Aug. 2019 That’s about as much sand as Louisiana used on the $46 million restoration of Pelican Island, one of dozens of barrier islands that protect coastal marshes and buffer the state from storms. Tristan Baurick,, "Dredging, dams and other river controls starve places downriver of much-needed sediment," 15 June 2019 Researchers and advocates say the insect is on the decline as more and more of its habitats are consumed by development, leaving it fewer marshes and meadows to illuminate. Dan Radel, USA TODAY, "Fireflies are dying out because people are destroying their habitats," 1 Aug. 2019 Floodwaters carried down from the Midwest are killing oysters and driving crabs, shrimp and fish out of bays and marshes and into saltier waters. Washington Post, "The Latest: Gov asks feds to declare fisheries disaster," 17 June 2019 In Canada, for instance, climate change is fueling extreme rain events, inundating cities like never before, in large part because natural buffers like marshes and forests have been stripped away by development. Matt Simon, WIRED, "The Sea Is Consuming Jakarta, and Its People Aren't Insured," 19 July 2019 The Crosby Island Marsh Preserve, a 243-acre property in southeast Orange County, provides nature lovers a new place to enjoy a hiking trail and see pine flatwoods, freshwater marshes and oak hammocks. Lisa Maria Garza,, "Crosby Island Marsh in southeast Orange offers new spot to take in nature," 17 July 2019 Extending from tropical forests and marshes to coral reefs along the coast, the reserve counts sea turtles, crocodiles, jaguars, spider monkeys, manatees, nurse sharks, and flamingos as resident fauna. George W. Stone, National Geographic, "Dinosaurs to gladiators: 10 World Heritage trips for families," 16 Aug. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'marsh.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of marsh


before the 12th century, in the meaning defined above

History and Etymology for marsh


Middle English mersh, from Old English merisc, mersc; akin to Middle Dutch mersch marsh, Old English mere sea, pool — more at marine

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Statistics for marsh

Last Updated

14 Oct 2019

Look-up Popularity

Time Traveler for marsh

The first known use of marsh was before the 12th century

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More Definitions for marsh



English Language Learners Definition of marsh

: an area of soft, wet land that has many grasses and other plants


\ ˈmärsh How to pronounce marsh (audio) \

Kids Definition of marsh

: an area of soft wet land with grasses and related plants

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More from Merriam-Webster on marsh

Rhyming Dictionary: Words that rhyme with marsh

Thesaurus: All synonyms and antonyms for marsh

Spanish Central: Translation of marsh

Nglish: Translation of marsh for Spanish Speakers

Britannica English: Translation of marsh for Arabic Speakers Encyclopedia article about marsh

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