Noun fen has 2 senses
  1. fen - 100 fen equal 1 yuan
    --1 is a kind of
    Chinese monetary unit
    --1 is a part of jiao
  2. marsh, marshland, fen, fenland - low-lying wet land with grassy vegetation; usually is a transition zone between land and water; "thousands of acres of marshland"; "the fens of eastern England"
    --2 is a kind of wetland
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