Longman Dictionary of Contemporary English homepage

Language: Old English
Origin: merisc, mersc

marsh

 noun
     
Related topics: Geology, Geography
marsh [uncountable and countable]
SG an area of low flat ground that is always wet and soft [↪ bog, swamp]
—marshy adjective:
The crane lives in marshy habitats.
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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