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

slip \slip\, v. i. imp.  p. p. slipped; p. pr.  vb. n.
   slipping. oe. slippen; akin to lg.  d. slippen, mhg.
   slipfen cf. dan. slippe, sw. slippa, icel. sleppa, and fr.
   oe. slipen, as. slimacpan in comp., akin to g. schleifen
   to slide, glide, drag, whet, ohg. slimacfan to slide,
   glide, make smooth, icel. slimacpa to whet; cf. also as.
   sl?pan, goth. sliupan, os. slopian, ohg. sliofan, g.
   schliefen, schl?pfen, which seem to come from a somewhat
   different root form. cf. slope, n.
   1. to move along the surface of a thing without bounding,
      rolling, or stepping; to slide; to glide.
      1913 webster

   2. to slide; to lose one's footing or one's hold; not to
      tread firmly; as, it is necessary to walk carefully lest
      the foot should slip.
      1913 webster

   3. to move or fly out of place; to shoot; -- often with
      out, off, etc.; as, a bone may slip out of its place.
      1913 webster

   4. to depart, withdraw, enter, appear, intrude, or escape as
      if by sliding; to go or come in a quiet, furtive manner;
      as, some errors slipped into the work.
      1913 webster

            thus one tradesman slips away,
            to give his partner fairer play.      --prior.
      1913 webster

            thrice the flitting shadow slipped away. --dryden.
      1913 webster

   5. to err; to fall into error or fault.
      1913 webster

            there is one that slippeth in his speech, but not
            from his heart.                       --ecclus. xix.
                                                  16.
      1913 webster

   to let slip, to loose from the slip or noose, as a hound;
      to allow to escape.
      1913 webster

            cry, "havoc," and let slip the dogs of war. --shak.
      1913 webster
see also:
slipped slipping slope to let slip 

[2] : WordNet (r) 2.0

slip
     n 1: a socially awkward or tactless act syn: faux pas, gaffe,
           solecism, gaucherie
     2: a minor inadvertent mistake usually observed in speech or
        writing or in small accidents or memory lapses etc. syn:
        slip-up, miscue, parapraxis
     3: potter's clay that is thinned and used for coating or
        decorating ceramics
     4: a part sometimes a root or leaf or bud removed from a
        plant to propagate a new plant through rooting or grafting
        syn: cutting
     5: a young and slender person; "he's a mere slip of a lad"
     6: a place where a craft can be made fast syn: mooring, moorage,
         berth
     7: an accidental misstep threatening or causing a fall; "he
        blamed his slip on the ice"; "the jolt caused many slips
        and a few spills" syn: trip
     8: a slippery smoothness; "he could feel the slickness of the
        tiller" syn: slickness, slick, slipperiness
     9: artifact consisting of a narrow flat piece of material syn:
         strip
     10: a small sheet of paper; "a receipt slip" syn: slip of
         paper
     11: a woman's sleeveless undergarment syn: chemise, shimmy,
          shift, teddies, teddy
     12: bed linen consisting of a cover for a pillow; "the burglar
         carried his loot in a pillowcase" syn: case, pillowcase,
          pillow slip
     13: an unexpected slide syn: skid, sideslip
     14: a flight maneuver; aircraft slides sideways in the air syn:
          sideslip
     15: the act of avoiding capture especially by cunning syn: elusion,
          eluding
     v 1: move stealthily; "the ship slipped away in the darkness"
          syn: steal
     2: insert inconspicuously or quickly or quietly; "he slipped
        some money into the waiter's hand"
     3: move obliquely or sideways, usually in an uncontrolled
        manner; "the wheels skidded against the sidewalk" syn: skid,
         slue, slew, slide
     4: get worse; "my grades are slipping" syn: drop off, drop
        away, fall away
     5: move smoothly and easily
     6: to make a mistake or be incorrect syn: err, mistake
     7: pass on stealthily; "he slipped me the key when nobody was
        looking" syn: sneak
     8: pass out of one's memory syn: slip one's mind
     9: move out of position; "dislocate joints"; "the artificial
        hip joint luxated and had to be put back surgically" syn:
         dislocate, luxate, splay
     also: slipping, slipped
see also:
faux pas gaffe solecism gaucherie slip-up miscue 
parapraxis cutting mooring moorage berth 
trip slickness slick slipperiness strip 
slip of paper chemise shimmy shift teddies 
teddy case pillowcase pillow slip skid 
sideslip elusion eluding steal slue 
slew slide drop off drop away fall away 
err mistake sneak slip one's mind dislocate 
luxate splay slipping slipped 

[3] : WordNet (r) 2.0

slipping
     adj : moving as on a slippery surface; "his slipping and
           slithering progress over the ice" syn: slithering
see also:
slithering 

[4] : WordNet (r) 2.0

slipping
     see slip
see also:
slip 

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

63 moby thesaurus words for "slipping":
   bad, coming apart, cracking, crumbling, decadent, declining,
   degenerate, despaired of, deteriorating, disintegrating, done for,
   draining, drooping, dwindling, dying, ebbing, effete, expiring,
   facing death, fading, failing, falling, flagging, fragmenting,
   given up, going, going to pieces, gone to seed, hopeless,
   in articulo mortis, in extremis, incapable of life, languishing,
   low, marcescent, moribund, near death, nonviable, on the downgrade,
   out of condition, out of shape, out of training, pining,
   regressive, retrograde, retrogressive, run to seed, rusty,
   shriveling, sinking, sliding, slipping away, slumping, soft, stiff,
   subsiding, tabetic, terminal, waning, wasting, wilting, withering,
   worsening

Slipping >> S Words
Slipping, definition of term: Slipping
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