The Collaborative International Dictionary of English v.0.48:

Tear \Tear\, n.
   The act of tearing, or the state of being torn; a rent; a
   fissure. --Macaulay.
   [1913 Webster]

   Wear and tear. See under Wear, n.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Wear \Wear\, n.
   1. The act of wearing, or the state of being worn;
      consumption by use; diminution by friction; as, the wear
      of a garment.
      [1913 Webster]

   2. The thing worn; style of dress; the fashion.
      [1913 Webster]

            Motley 's the only wear.              --Shak.
      [1913 Webster]

   3. The result of wearing or use; consumption, diminution, or
      impairment due to use, friction, or the like; as, the wear
      of this coat has been good.
      [Webster 1913 Suppl.]

   Wear and tear, the loss by wearing, as of machinery in use;
      the loss or injury to which anything is subjected by use,
      accident, etc.
      [1913 Webster]

WordNet (r) 3.0 (2006):

wear and tear
    n 1: decrease in value of an asset due to obsolescence or use
         [syn: depreciation, wear and tear]

Moby Thesaurus II by Grady Ward, 1.0:

30 Moby Thesaurus words for "wear and tear":
   ablation, atomization, attrition, breakup, consumption, corrosion,
   crumbling, decay, decomposition, decrement, degradation,
   deliquescence, depletion, dilapidation, disintegration,
   disjunction, disorganization, dissipation, dissolution, erosion,
   exhaustion, incoherence, loss, ravages of time, resolution,
   shrinkage, use, waste, wear, weathering