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Definition of marsh
marsh
/mɑːrʃ/
marsh
Plural:marshes
•Adjective:marshy
marsh Lexical Profile
CEFR
B2
Grade
4
Tier
2
Usage
Top 5k
marsh Game Scores & Validity
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• noun
1
An area of low-lying wetland that is flooded in wet seasons or at high tide, typically remaining waterlogged at all times and dominated by herbaceous plants rather than woody trees.
Example
"We saw a diverse variety of migratory birds resting among the reeds in the coastal marsh."
Synonyms
View all synonyms for marsh Antonyms
View all antonyms for marshWord Nuance & Usage
While often used interchangeably with 'swamp', a marsh is strictly distinguished in ecology by its domination of herbaceous plants like grasses and reeds, whereas a swamp is dominated by woody trees.
• Rhymes for marsh
• Nearby Words
Word Origin & Etymology
From Old English 'mersc', which developed from Proto-Germanic '*mariskaz', related to the word 'mere' (pool or lake) and Latin 'mare' (sea).
Cite this Entry
Wordmom. (2026). Definition of Marsh. In Wordmom Dictionary. Retrieved Oct 12, 2026, from https://wordmom.com/dictionary/marsh