| Fen (n.) Low land overflowed, or covered wholly or partially with water, but producing sedge, coarse grasses, or other aquatic plants; boggy land; moor; marsh. Thesaurus Entries baygall, bemire, bog down, bottom, bottomland, bottoms, buffalo wallow, cesspool, cloaca, cloaca maxima, drain, dump, everglade, fen, fenland, garbage dump, glade, hog wallow, holm, marais, marish, marsh, marshland, meadow, mere, mire, moor, moorland, morass, moss, mud, mud flat, peat bog, quag, quagmire, quicksand, salt marsh, septic tank, sewer, sink, sink in, slob land, slough, sough, stodge, sump, swale, swamp, swampland, taiga, wallow, wash |