The Collaborative International Dictionary of English v.0.48:

Gild \Gild\ (g[i^]ld), v. t. [imp. & p. p. Gilded or Gilt
   (?); p. pr. & vb. n. Gilding.] [AS. gyldan, from gold gold.
   [root]234. See Gold.]
   1. To overlay with a thin covering of gold; to cover with a
      golden color; to cause to look like gold. "Gilded
      chariots." --Pope.
      [1913 Webster]

            No more the rising sun shall gild the morn. --Pope.
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   2. To make attractive; to adorn; to brighten.
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            Let oft good humor, mild and gay,
            Gild the calm evening of your day.    --Trumbull.
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   3. To give a fair but deceptive outward appearance to; to
      embellish; as, to gild a lie. --Shak.
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   4. To make red with drinking. [Obs.]
      [1913 Webster]

            This grand liquior that hath gilded them. --Shak.
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The Collaborative International Dictionary of English v.0.48:

Gilt \Gilt\, n. [See Geld, v. t.] (Zool.)
   A female pig, when young.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Gilt \Gilt\,
   imp. & p. p. of Gild.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Gilt \Gilt\, p. p. & a.
   Gilded; covered with gold; of the color of gold; golden
   yellow. "Gilt hair" --Chaucer.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Gilt \Gilt\, n.
   1. Gold, or that which resembles gold, laid on the surface of
      a thing; gilding. --Shak.
      [1913 Webster]

   2. Money. [Obs.] "The gilt of France." --Shak. Gilt-edge

WordNet (r) 3.0 (2006):

gilt
    adj 1: having the deep slightly brownish color of gold; "long
           aureate (or golden) hair"; "a gold carpet" [syn:
           aureate, gilded, gilt, gold, golden]
    n 1: a coating of gold or of something that looks like gold
         [syn: gilt, gilding]

Moby Thesaurus II by Grady Ward, 1.0:

199 Moby Thesaurus words for "gilt":
   acting, affectation, appearance, attitudinizing, aureate, auric,
   barrow, beige, bluff, bluffing, blunt, boar, boodle, brass, brassy,
   bravery, brazen, bread, bronze, bronzy, bucks, buff, buff-yellow,
   cabbage, canary, canary-yellow, cheating, chiffon, chips, citron,
   citron-yellow, clinquant, color, coloring, copper, coppery, cream,
   creamy, cupreous, cuprous, deception, delusion, dinero, disguise,
   dissemblance, dissembling, dissimulation, dough, ecru, facade,
   face, fakery, faking, fallow, false air, false front, false show,
   falsity, feigning, feint, ferrous, ferruginous, festoons, finery,
   flaxen, folderol, foofaraw, four-flushing, fraud, frilliness,
   frilling, frills, frills and furbelows, frippery, front, froufrou,
   fuss, gaiety, gaudery, gelt, gilded, gilding, gingerbread, gloss,
   gold, gold-colored, gold-filled, gold-plated, golden, grease,
   green, green stuff, hog, humbug, humbuggery, imposture, iron,
   ironlike, jack, kale, lead, leaden, lemon, lemon-yellow, luteolous,
   lutescent, masquerade, mazuma, mercurial, mercurous,
   meretriciousness, moolah, mopus, nickel, nickelic, nickeline,
   ocherish, ocherous, ochery, ochreous, ochroid, ochrous, ochry,
   oil of palms, ointment, oof, ooftish, or, ostentation,
   outward show, paste, pewter, pewtery, pig, piggy, piglet, pigling,
   pinchbeck, playacting, porker, pose, posing, posture, pretense,
   pretension, pretext, primrose, primrose-colored, primrose-yellow,
   quicksilver, razorback, representation, rhino, rocks, saffron,
   saffron-colored, saffron-yellow, sallow, sand-colored, sandy,
   seeming, semblance, sham, shekels, shoat, show, silver,
   silver-plated, silvery, simoleons, simulacrum, simulation, sow,
   speciousness, spondulics, steel, steely, straw, straw-colored,
   suckling pig, sugar, superfluity, swine, the needful, tin, tinny,
   tinsel, trappings, trickery, trumpery, tusker, varnish, wampum,
   wild boar, window dressing, xanthic, xanthous, yellow, yellowish