[1] : The Collaborative International Dictionary of English v.0.48

salt \salt\, a. compar. salter; superl. saltest. as.
   sealt, salt. see salt, n.
   1. of or relating to salt; abounding in, or containing, salt;
      prepared or preserved with, or tasting of, salt; salted;
      as, salt beef; salt water. "salt tears." --chaucer.
      1913 webster

   2. overflowed with, or growing in, salt water; as, a salt
      marsh; salt grass.
      1913 webster

   3. fig.: bitter; sharp; pungent.
      1913 webster

            i have a salt and sorry rheum offends me. --shak.
      1913 webster

   4. fig.: salacious; lecherous; lustful. --shak.
      1913 webster
      1913 webster

   salt acid chem., hydrochloric acid.

   salt block, an apparatus for evaporating brine; a salt
      factory. --knight.

   salt bottom, a flat piece of ground covered with saline
      efflorescences. western u.s. --bartlett.

   salt cake chem., the white caked mass, consisting of
      sodium sulphate, which is obtained as the product of the
      first stage in the manufacture of soda, according to
      leblanc's process.

   salt fish.
      a salted fish, especially cod, haddock, and similar
          fishes that have been salted and dried for food.
      b a marine fish.

   salt garden, an arrangement for the natural evaporation of
      sea water for the production of salt, employing large
      shallow basins excavated near the seashore.

   salt gauge, an instrument used to test the strength of
      brine; a salimeter.

   salt horse, salted beef. slang

   salt junk, hard salt beef for use at sea. slang

   salt lick. see lick, n.

   salt marsh, grass land subject to the overflow of salt
      water.

   salt-marsh caterpillar zool., an american bombycid moth
      spilosoma acraea which is very destructive to the
      salt-marsh grasses and to other crops. called also woolly
      bear. see illust. under moth, pupa, and woolly
      bear, under woolly.

   salt-marsh fleabane bot., a strong-scented composite herb
      pluchea camphorata with rayless purplish heads,
      growing in salt marshes.

   salt-marsh hen zool., the clapper rail. see under rail.
      

   salt-marsh terrapin zool., the diamond-back.

   salt mine, a mine where rock salt is obtained.

   salt pan.
      a a large pan used for making salt by evaporation; also,
          a shallow basin in the ground where salt water is
          evaporated by the heat of the sun.
      b pl. salt works.

   salt pit, a pit where salt is obtained or made.

   salt rising, a kind of yeast in which common salt is a
      principal ingredient. u.s.

   salt raker, one who collects salt in natural salt ponds, or
      inclosures from the sea.

   salt sedative chem., boracic acid. obs.

   salt spring, a spring of salt water.

   salt tree bot., a small leguminous tree halimodendron
      argenteum growing in the salt plains of the caspian
      region and in siberia.

   salt water, water impregnated with salt, as that of the
      ocean and of certain seas and lakes; sometimes, also,
      tears.
      1913 webster

            mine eyes are full of tears, i can not see;
            and yet salt water blinds them not so much
            but they can see a sort of traitors here. --shak.
      1913 webster

   salt-water sailor, an ocean mariner.

   salt-water tailor. zool. see bluefish.
      1913 webster
see also:
salter saltest salt salt acid salt block salt bottom 
salt cake salt fish salt garden salt gauge salt horse 
salt junk salt lick lick salt marsh salt-marsh caterpillar 
spilosoma acraea woolly bear moth pupa woolly bear 
woolly salt-marsh fleabane pluchea camphorata salt-marsh hen rail 
salt-marsh terrapin salt mine salt pan salt pit salt rising 
salt raker salt sedative salt spring salt tree halimodendron argenteum 
salt water salt-water sailor salt-water tailor bluefish 

[2] : Moby Thesaurus II by Grady Ward, 1.0

91 moby thesaurus words for "salt marsh":
   alkali flat, alluvial plain, basin, baygall, bog, bottom,
   bottomland, bottoms, buffalo wallow, bushveld, campo, champaign,
   champaign country, coastal plain, delta, desert, down, downs,
   everglade, fell, fen, fenland, flat, flat country, flatland, flats,
   glade, grass veld, grassland, heath, hog wallow, holm, lande,
   level, llano, lowland, lowlands, lunar mare, marais, mare, marish,
   marsh, marshland, meadow, mere, mesa, mesilla, mire, moor,
   moorland, morass, moss, mud, mud flat, open country, pampa, pampas,
   peat bog, peneplain, plain, plains, plateau, playa, prairie,
   quagmire, quicksand, salt flat, salt pan, savanna, sebkha,
   slob land, slough, sough, steppe, sump, swale, swamp, swampland,
   table, tableland, taiga, tree veld, tundra, upland, vega, veld,
   wallow, wash, weald, wide-open spaces, wold

Marsh >> M Words
Marsh, definition of term: Marsh
marsh_pag1.html

Marsh Mallow >> M Words
Marsh Mallow, definition of term: Marsh Mallow
marsh+mallow_pag1.html

Marsh Elder >> M Words
Marsh Elder, definition of term: Marsh Elder
marsh+elder_pag1.html

Marsh Hawk >> M Words
Marsh Hawk, definition of term: Marsh Hawk
marsh+hawk_pag1.html

Prunella Salt >> P Words
Prunella Salt, definition of term: Prunella Salt
prunella+salt_pag1.html

Rochelle Salt >> R Words
Rochelle Salt, definition of term: Rochelle Salt
rochelle+salt_pag1.html

Onion Salt >> O Words
Onion Salt, definition of term: Onion Salt
onion+salt_pag1.html

Monsels Salt >> M Words
Monsels Salt, definition of term: Monsels Salt
monsels+salt_pag1.html

Glaubers Salt >> G Words
Glaubers Salt, definition of term: Glaubers Salt
glaubers+salt_pag1.html

Ethereal Salt >> E Words
Ethereal Salt, definition of term: Ethereal Salt
ethereal+salt_pag1.html