Synonyms of fen in English:

fen


See definition of fen

noun

1‘they opposed the drainage of the fen’

SYNONYMS
marsh, marshland, salt marsh, fenland, wetland, bog, peat bog, bogland, swamp, swampland
Scottish, Northern English moss, carr
Irish corcass
North American bayou, moor, pocosin, salina
archaic marish