The Collaborative International Dictionary of English v.0.48:

Skid \Skid\ (sk[i^]d), n. [Icel. sk[imac][eth] a billet of wood.
   See Shide.] [Written also skeed.]
   1. A shoe or clog, as of iron, attached to a chain, and
      placed under the wheel of a wagon to prevent its turning
      when descending a steep hill; a drag; a skidpan; also, by
      extension, a hook attached to a chain, and used for the
      same purpose.
      [1913 Webster]

   2. A piece of timber used as a support, or to receive
      pressure. Specifically:
      (a) pl. (Naut.) Large fenders hung over a vessel's side to
          protect it in handling a cargo. --Totten.
      (b) One of a pair of timbers or bars, usually arranged so
          as to form an inclined plane, as form a wagon to a
          door, along which anything is moved by sliding or
          rolling.
      (c) One of a pair of horizontal rails or timbers for
          supporting anything, as a boat, a barrel, etc.
          [1913 Webster]

   3. (Aeronautics) A runner (one or two) under some flying
      machines, used for landing.
      [Webster 1913 Suppl.]

   4. A low movable platform for supporting heavy items to be
      transported, typically of two layers, and having a space
      between the layers into which the fork of a fork lift can
      be inserted; it is used to conveniently transport heavy
      objects by means of a fork lift; -- a skid without wheels
      is the same as a pallet.
      [PJC]

   5. pl. Declining fortunes; a movement toward defeat or
      downfall; -- used mostly in the phrase

   on the skids and

   hit the skids.
      [PJC]

   6. [From the v.] Act of skidding; -- called also side slip.
      [Webster 1913 Suppl.]

The Collaborative International Dictionary of English v.0.48:

Skid \Skid\, v. t. [imp. & p. p. Skidded; p. pr. & vb. n.
   Skidding.]
   1. To protect or support with a skid or skids; also, to cause
      to move on skids.
      [1913 Webster]

   2. To check with a skid, as wagon wheels. --Dickens.
      [1913 Webster]

   3. (Forestry) To haul (logs) to a skid and load on a skidway.
      [Webster 1913 Suppl.]

The Collaborative International Dictionary of English v.0.48:

Skid \Skid\, v. i.
   1. To slide without rotating; -- said of a wheel held from
      turning while the vehicle moves onward.
      [Webster 1913 Suppl.]

   2. To fail to grip the roadway; specif., to slip sideways on
      the road; to side-slip; -- said esp. of a cycle or
      automobile.
      [Webster 1913 Suppl.]

WordNet (r) 3.0 (2006):

skid
    n 1: one of a pair of planks used to make a track for rolling or
         sliding objects
    2: a restraint provided when the brake linings are moved
       hydraulically against the brake drum to retard the wheel's
       rotation [syn: brake shoe, shoe, skid]
    3: an unexpected slide [syn: skid, slip, sideslip]
    v 1: slide without control; "the car skidded in the curve on the
         wet road"
    2: elevate onto skids
    3: apply a brake or skid to
    4: move obliquely or sideways, usually in an uncontrolled
       manner; "the wheels skidded against the sidewalk" [syn:
       skid, slip, slue, slew, slide]

Moby Thesaurus II by Grady Ward, 1.0:

66 Moby Thesaurus words for "skid":
   avalanche, bank, coast, crab, dip, drop, edge, fall, feather,
   fishtail, flit, flow, fly, glide, glissade, glissando, go crabwise,
   go sideways, ice-skate, landslide, landslip, lateral, lateralize,
   loop, make leeway, nose-dive, plow, plunge, porpoise, pull out,
   pull up, push down, roll, roller-skate, sail, sheer, sideslip,
   sidestep, sidle, skate, skateboard, skew, ski, skim, sled, sleigh,
   slidder, slide, slide down, slip, slippage, slither, slue, slur,
   snowslide, snowslip, spin, spiral, stunt, subsidence, sweep,
   toboggan, tumble, undulate, veer, yaw



V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

SKID
       Service Key IDentifier (X509v3, RFC 3280)