The Collaborative International Dictionary of English v.0.48:

Shave \Shave\, n. [AS. scafa, sceafa, a sort of knife. See
   Shave, v. t.]
   1. A thin slice; a shaving. --Wright.
      [1913 Webster]

   2. A cutting of the beard; the operation of shaving.
      [1913 Webster]

   3.
      (a) An exorbitant discount on a note. [Cant, U.S.]
      (b) A premium paid for an extension of the time of
          delivery or payment, or for the right to vary a stock
          contract in any particular. [Cant, U.S.] --N. Biddle.
          [1913 Webster]

   4. A hand tool consisting of a sharp blade with a handle at
      each end; a drawing knife; a spokeshave.
      [1913 Webster]

   5. The act of passing very near to, so as almost to graze;
      as, the bullet missed by a close shave. [Colloq.]
      [1913 Webster]

   Shave grass (Bot.), the scouring rush. See the Note under
      Equisetum.

   Shave hook, a tool for scraping metals, consisting of a
      sharp-edged triangular steel plate attached to a shank and
      handle.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Shave \Shave\ (sh[=a]v),
   obs. p. p. of Shave. --Chaucer.
   [1913 Webster]

         His beard was shave as nigh as ever he can. --Chaucer.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Shave \Shave\, v. t. [imp. Shaved (sh[=a]vd);p. p. Shaved or
   Shaven (sh[=a]v"'n); p. pr. & vb. n. Shaving.] [OE.
   shaven, schaven, AS. scafan, sceafan; akin to D. schaven, G.
   schaben, Icel. skafa, Sw. skafva, Dan. skave, Goth. scaban,
   Russ. kopate to dig, Gr. ska`ptein, and probably to L.
   scabere to scratch, to scrape. Cf. Scab, Shaft, Shape.]
   1. To cut or pare off from the surface of a body with a razor
      or other edged instrument; to cut off closely, as with a
      razor; as, to shave the beard.
      [1913 Webster]

   2. To make bare or smooth by cutting off closely the surface,
      or surface covering, of; especially, to remove the hair
      from with a razor or other sharp instrument; to take off
      the beard or hair of; as, to shave the face or the crown
      of the head; he shaved himself.
      [1913 Webster]

            I'll shave your crown for this.       --Shak.
      [1913 Webster]

            The laborer with the bending scythe is seen
            Shaving the surface of the waving green. --Gay.
      [1913 Webster]

   3. To cut off thin slices from; to cut in thin slices.
      [1913 Webster]

            Plants bruised or shaven in leaf or root. --Bacon.
      [1913 Webster]

   4. To skim along or near the surface of; to pass close to, or
      touch lightly, in passing.
      [1913 Webster]

            Now shaves with level wing the deep.  --Milton.
      [1913 Webster]

   5. To strip; to plunder; to fleece. [Colloq.]
      [1913 Webster]

   To shave a note, to buy it at a discount greater than the
      legal rate of interest, or to deduct in discounting it
      more than the legal rate allows. [Cant, U.S.]
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Shave \Shave\, v. i.
   To use a razor for removing the beard; to cut closely; hence,
   to be hard and severe in a bargain; to practice extortion; to
   cheat.
   [1913 Webster]

WordNet (r) 3.0 (2006):

shave
    n 1: the act of removing hair with a razor [syn: shave,
         shaving]
    v 1: remove body hair with a razor
    2: cut closely; "trim my beard" [syn: shave, trim]
    3: cut the price of [syn: shave, knock off]
    4: cut or remove with or as if with a plane; "The machine shaved
       off fine layers from the piece of wood" [syn: plane,
       shave]
    5: make shavings of or reduce to shavings; "shave the radish"
    6: touch the surface of lightly; "His back shaved the counter in
       passing"

Moby Thesaurus II by Grady Ward, 1.0:

226 Moby Thesaurus words for "shave":
   abate, abbreviate, abrade, abridge, abscind, abstract, amputate,
   annihilate, ban, bar, bate, beat, beat down, beguile of, bilk, bob,
   boil down, borrow, break, brush, brush by, bunco, burn, capsulize,
   caress, cheapen, cheat, chisel, chouse, chouse out of, clip,
   close shave, cog, cog the dice, come in contact, compress, con,
   condense, contact, contract, cozen, crib, crop, cull, curtail, cut,
   cut away, cut back, cut down, cut off, cut off short, cut out,
   cut prices, cut short, dab, decline, decrease, deduct, deflate,
   defraud, depreciate, derogate, detract, devaluate, diddle,
   diminish, discount, discount notes, disparage, dive, do in,
   do out of, dock, drag, drain, dress, dub, eat away, elide,
   eliminate, enucleate, epitomize, equalize, eradicate, erode,
   euchre, even, except, excise, exclude, extinguish, extirpate,
   extract, fall, fall in price, file away, finagle, flam, flatten,
   fleece, flimflam, fob, foreshorten, fudge, give way, glance, gouge,
   grade, graze, grease, gull, gyp, harrow, have, hit, hocus,
   hocus-pocus, impair, impinge, isolate, jew down, kiss, knock off,
   lay, leach, lend, lessen, level, lop, lower, lubricate, mark down,
   mow, mulct, mutilate, narrow escape, narrow squeak, nip, nose-dive,
   nudge, oil, osculate, pack the deal, pare, peel, pick out, pigeon,
   plane, planish, plaster, plummet, plunge, poll, pollard,
   practice fraud upon, prune, purify, reap, recap, recapitulate,
   reduce, refine, remove, retrench, rook, root out, rub, rub away,
   rule out, sag, scam, scrape, screw, sell gold bricks, set apart,
   set aside, shear, shingle, shortchange, shorten, shred, sideswipe,
   skim, skirt, skive, slash, slump, smooth, smooth down, smooth out,
   snub, squeak by, stack the cards, stamp out, stick, sting,
   strike off, strip, strip off, stunt, subduct, subtract, sum up,
   summarize, swindle, synopsize, take a dive, take away, take from,
   take in, take off, take out, telescope, thimblerig, thin, thin out,
   throw a fight, touch, trim, truncate, victimize, wear away, weed,
   whittle, wipe out, withdraw