The Collaborative International Dictionary of English v.0.48:

Water \Wa"ter\ (w[add]"t[~e]r), n. [AS. w[ae]ter; akin to OS.
   watar, OFries. wetir, weter, LG. & D. water, G. wasser, OHG.
   wazzar, Icel. vatn, Sw. vatten, Dan. vand, Goth. wat[=o], O.
   Slav. & Russ. voda, Gr. 'y`dwr, Skr. udan water, ud to wet,
   and perhaps to L. unda wave. [root]137. Cf. Dropsy,
   Hydra, Otter, Wet, Whisky.]
   1. The fluid which descends from the clouds in rain, and
      which forms rivers, lakes, seas, etc. "We will drink
      water." --Shak. "Powers of fire, air, water, and earth."
      --Milton.
      [1913 Webster]

   Note: Pure water consists of hydrogen and oxygen, H2O, and
         is a colorless, odorless, tasteless, transparent
         liquid, which is very slightly compressible. At its
         maximum density, 39[deg] Fahr. or 4[deg] C., it is the
         standard for specific gravities, one cubic centimeter
         weighing one gram. It freezes at 32[deg] Fahr. or
         0[deg] C. and boils at 212[deg] Fahr. or 100[deg] C.
         (see Ice, Steam). It is the most important natural
         solvent, and is frequently impregnated with foreign
         matter which is mostly removed by distillation; hence,
         rain water is nearly pure. It is an important
         ingredient in the tissue of animals and plants, the
         human body containing about two thirds its weight of
         water.
         [1913 Webster]

   2. A body of water, standing or flowing; a lake, river, or
      other collection of water.
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            Remembering he had passed over a small water a poor
            scholar when first coming to the university, he
            kneeled.                              --Fuller.
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   3. Any liquid secretion, humor, or the like, resembling
      water; esp., the urine.
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   4. (Pharm.) A solution in water of a gaseous or readily
      volatile substance; as, ammonia water. --U. S. Pharm.
      [1913 Webster]

   5. The limpidity and luster of a precious stone, especially a
      diamond; as, a diamond of the first water, that is,
      perfectly pure and transparent. Hence, of the first water,
      that is, of the first excellence.
      [1913 Webster]

   6. A wavy, lustrous pattern or decoration such as is imparted
      to linen, silk, metals, etc. See Water, v. t., 3,
      Damask, v. t., and Damaskeen.
      [1913 Webster]

   7. An addition to the shares representing the capital of a
      stock company so that the aggregate par value of the
      shares is increased while their value for investment is
      diminished, or "diluted." [Brokers' Cant]
      [1913 Webster]

   Note: Water is often used adjectively and in the formation of
         many self-explaining compounds; as, water drainage;
         water gauge, or water-gauge; waterfowl, water-fowl, or
         water fowl; water-beaten; water-borne, water-circled,
         water-girdled, water-rocked, etc.
         [1913 Webster]

   Hard water. See under Hard.

   Inch of water, a unit of measure of quantity of water,
      being the quantity which will flow through an orifice one
      inch square, or a circular orifice one inch in diameter,
      in a vertical surface, under a stated constant head; also
      called miner's inch, and water inch. The shape of the
      orifice and the head vary in different localities. In the
      Western United States, for hydraulic mining, the standard
      aperture is square and the head from 4 to 9 inches above
      its center. In Europe, for experimental hydraulics, the
      orifice is usually round and the head from 1/2 of an inch
      to 1 inch above its top.

   Mineral water, waters which are so impregnated with foreign
      ingredients, such as gaseous, sulphureous, and saline
      substances, as to give them medicinal properties, or a
      particular flavor or temperature.

   Soft water, water not impregnated with lime or mineral
      salts.

   To hold water. See under Hold, v. t.

   To keep one's head above water, to keep afloat; fig., to
      avoid failure or sinking in the struggles of life.
      [Colloq.]

   To make water.
      (a) To pass urine. --Swift.
      (b) (Naut.) To admit water; to leak.

   Water of crystallization (Chem.), the water combined with
      many salts in their crystalline form. This water is
      loosely, but, nevertheless, chemically, combined, for it
      is held in fixed and definite amount for each substance
      containing it. Thus, while pure copper sulphate, CuSO4,
      is a white amorphous substance, blue vitriol, the
      crystallized form, CuSO4.5H2O, contains five molecules
      of water of crystallization.

   Water on the brain (Med.), hydrocephalus.

   Water on the chest (Med.), hydrothorax.
      [1913 Webster]

   Note: Other phrases, in which water occurs as the first
         element, will be found in alphabetical order in the
         Vocabulary.
         [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Water \Wa"ter\, v. t. [imp. & p. p. Watered; p. pr. & vb. n.
   Watering.] [AS. w[ae]terian, gew[ae]terian.]
   [1913 Webster]
   1. To wet or supply with water; to moisten; to overflow with
      water; to irrigate; as, to water land; to water flowers.
      [1913 Webster]

            With tears watering the ground.       --Milton.
      [1913 Webster]

            Men whose lives gilded on like rivers that water the
            woodlands.                            --Longfellow.
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   2. To supply with water for drink; to cause or allow to
      drink; as, to water cattle and horses.
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   3. To wet and calender, as cloth, so as to impart to it a
      lustrous appearance in wavy lines; to diversify with
      wavelike lines; as, to water silk. Cf. Water, n., 6.
      [1913 Webster]

   4. To add water to (anything), thereby extending the quantity
      or bulk while reducing the strength or quality; to extend;
      to dilute; to weaken.
      [1913 Webster]

   To water stock, to increase the capital stock of a company
      by issuing new stock, thus diminishing the value of the
      individual shares. Cf. Water, n., 7. [Brokers' Cant]
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Water \Wa"ter\, v. i.
   1. To shed, secrete, or fill with, water or liquid matter;
      as, his eyes began to water.
      [1913 Webster]

            If thine eyes can water for his death. --Shak.
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   2. To get or take in water; as, the ship put into port to
      water.
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   The mouth waters, a phrase denoting that a person or animal
      has a longing desire for something, since the sight of
      food often causes one who is hungry to have an increased
      flow of saliva.
      [1913 Webster]

WordNet (r) 3.0 (2006):

water
    n 1: binary compound that occurs at room temperature as a clear
         colorless odorless tasteless liquid; freezes into ice below
         0 degrees centigrade and boils above 100 degrees
         centigrade; widely used as a solvent [syn: water, H2O]
    2: the part of the earth's surface covered with water (such as a
       river or lake or ocean); "they invaded our territorial
       waters"; "they were sitting by the water's edge" [syn: body
       of water, water]
    3: once thought to be one of four elements composing the
       universe (Empedocles)
    4: a facility that provides a source of water; "the town debated
       the purification of the water supply"; "first you have to cut
       off the water" [syn: water system, water supply, water]
    5: liquid excretory product; "there was blood in his urine";
       "the child had to make water" [syn: urine, piss, pee,
       piddle, weewee, water]
    6: a liquid necessary for the life of most animals and plants;
       "he asked for a drink of water"
    v 1: supply with water, as with channels or ditches or streams;
         "Water the fields" [syn: water, irrigate]
    2: provide with water; "We watered the buffalo"
    3: secrete or form water, as tears or saliva; "My mouth watered
       at the prospect of a good dinner"; "His eyes watered"
    4: fill with tears; "His eyes were watering"

Moby Thesaurus II by Grady Ward, 1.0:

291 Moby Thesaurus words for "water":
   April showers, BO, Davy, Davy Jones, Dylan, Foamite, Neptune,
   Nereid, Nereus, Oceanid, Oceanus, Poseidon, Proteus, Thetis,
   Triton, Varuna, acid, adulterate, agua, air, aqua, aquarelle,
   asperge, atom, atomic particles, attenuate, automatic sprinkler,
   baptize, bastardize, beaded brow, beads of sweat, bed, bed down,
   bedew, bespatter, besprinkle, beverage, blood, body odor, break,
   bridle, brush, brute matter, building block, cambric tea, canvas,
   carbon tet, carbon tetrachloride, carbon-dioxide foam,
   cast the lead, chameleon, chemical element, cloud shapes, cobweb,
   cold sweat, component, constituent, contaminate, corrupt, curry,
   currycomb, cut, dabble, damp, dampen, dash, debase, deck gun,
   deluge set, denaturalize, denature, dew, diaphoresis, dilute,
   dishwater, doctor, doctor up, douche, drench, drink,
   drinking water, drool, earth, easel-picture, eau, element,
   elementary particle, elementary unit, emacerate, emaciate,
   etherealize, excrete, expand, extinguisher, exudate, exudation,
   fathom, feed, finger painting, fire, fire apparatus, fire engine,
   fire hose, fire hydrant, fireplug, fluid, fluid extract,
   fluid mechanics, foam, foam extinguisher, fodder, fortify,
   fundamental particle, gentle, give out, gossamer, gouache, groom,
   ground water, gruel, hair, handle, hard water, harness, head,
   heavy water, hitch, honest sweat, hook-and-ladder, hose, hose down,
   house of cards, humect, humectate, humidify, hydraulics,
   hydrogeology, hydrol, hydrometeor, hydrosphere, hyle, hypostasis,
   irrigate, juice, kaleidoscope, lace, lactate, ladder pipe, latex,
   lather, limewater, liquid, liquid extract, liquor, litter,
   make a sounding, manage, matchwood, material, material world,
   materiality, matter, mercury, mermaid, merman, micturition, milk,
   milk and water, mineral water, moisten, molecule, monad, moon,
   natural world, nature, oil, oil painting, paddle, painting, pee,
   pee-pee, perspiration, perspiration odor, physical world, piddle,
   pish, piss, plenum, plumb, plumb the depths, plumb-line, pollute,
   produce, pumper, quicksilver, rain, rainwater, rarefy, reduce,
   reed, rolling stone, rope of sand, rub down, saddle, salt water,
   sand castle, sap, sea devil, sea god, sea water, seaman, secern,
   secrete, semiliquid, shifting sands, siren, slaver, sling the lead,
   slobber, slop, slosh, snorkel, soda, soft water, sound, sparge,
   spatter, spike, spit, spittle, splash, splatter, sponge, spray,
   spring water, sprinkle, sprinkler, sprinkler head,
   sprinkler system, stale, steam, streams of sweat, stuff, substance,
   substratum, subtilize, sudor, sudoresis, super-pumper, swash,
   sweat, swelter, syringe, take soundings, tame, tamper with, tear,
   tempera, tend, the four elements, the weather, thin, thin away,
   thin down, thin out, thread, train, unit of being, urea, urination,
   urine, wash, wash drawing, water cannon, water down, water vapor,
   weaken, weather vane, weathercock, wee-wee, weep, well water, wet,
   wet blanket, wet down, wetting agent, wetting-out agent,
   wheel of fortune, whey, whirligig, yoke



Bouvier's Law Dictionary, Revised 6th Ed (1856):

WATER. That liquid substance of which the sea, the rivers, and creeks are
composed.
     2. A pool of water, or a stream or water course, is considered as part
of the land, hence a pool of twenty acres, would pass by the grant of twenty
acres of land, without mentioning the water. 2 Bl. Com. 18; 2 N. H. Rep.
255; 1, Wend. R. 255; 5 Paige, R. 141; 2 N. H. Rep. 371; 2 Brownl. 142; 5
Cowen, R. 216; 5 Conn. R. 497; 1 Wend. R. 237. A mere grant of water passes
only a fishery. Co. Lit. 4 b.
     3. Like land, water is distinguishable into different parts, as the
sea, (q.v.) rivers, (q.v.) docks, (q.v.) canals, (q.v.) ponds, q v.) and
sewers, (q.v.) and to these may be added at water course. (q.v.) Vide 4
Mason, R. 397 River; Water course.