The Collaborative International Dictionary of English v.0.48:

Gargle \Gar"gle\, n. (Arch.)
   See Gargoyle.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Gargle \Gar"gle\, v. t. [imp. & p. p. Garggled, p. pr. & vb.
   n. Gargling (?).] [F. gargouiller to dabble, paddle,
   gargle. Cf. Gargoyle, Gurgle.]
   1. To wash or rinse, as the mouth or throat, particular the
      latter, agitating the liquid (water or a medicinal
      preparation) by an expulsion of air from the lungs.
      [1913 Webster]

   2. To warble; to sing as if gargling [Obs.] --Waller.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Gargle \Gar"gle\, n.
   A liquid, as water or some medicated preparation, used to
   cleanse the mouth and throat, especially for a medical
   effect.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Gargoyle \Gar"goyle\, n. [OE. garguilie, gargouille, cf. Sp.
   g['a]rgola, prob. fr. the same source as F. gorge throat,
   influenced by L. gargarizare to gargle. See Gorge and cf.
   Gargle, Gargarize.] (Arch.)
   A spout projecting from the roof gutter of a building, often
   carved grotesquely. [Written also gargle, gargyle, and
   gurgoyle.]
   [1913 Webster]

WordNet (r) 3.0 (2006):

gargle
    n 1: a medicated solution used for gargling and rinsing the
         mouth [syn: gargle, mouthwash]
    2: the sound produced while gargling
    v 1: utter with gargling or burbling sounds
    2: rinse one's mouth and throat with mouthwash; "gargle with
       this liquid" [syn: gargle, rinse]

Moby Thesaurus II by Grady Ward, 1.0:

81 Moby Thesaurus words for "gargle":
   baptize, bath, bathe, bib, dentifrice, douche, draft,
   drain the cup, dram, drench, drink, drink bottoms-up, drink deep,
   drink hard, drink off, drink up, drop, flush, flush out,
   follow strong drink, grog, guzzle, holystone, imbibe, irrigate,
   jigger, jolt, knock back, lap, lap up, lather, launder, lave,
   libation, mop, mop up, mouthwash, nip, peg, potation, potion, pull,
   quaff, rinse, rinse out, ritually immerse, round, round of drinks,
   scour, scrub, scrub up, shampoo, shot, shower, sip, sluice,
   sluice out, snifter, snort, soak, soap, sponge, spot, suck, sup,
   swab, swig, swill, syringe, tipple, toivel, tooth powder,
   toothpaste, tope, toss down, toss off, tub, wash, wash out,
   wash up, wet