[1] : 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
see also:
wear and tear wear 

[2] : 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
see also:
wear and tear 

[3] : WordNet (r) 2.0

wear and tear
     n : decrease in value of an asset due to obsolescence or use
         syn: depreciation
see also:
depreciation 

[4] : 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

Tear >> T Words
Tear, definition of term: Tear
tear_pag1.html

Tear Sheet >> T Words
Tear Sheet, definition of term: Tear Sheet
tear+sheet_pag1.html

Tear Off >> T Words
Tear Off, definition of term: Tear Off
tear+off_pag1.html

Tear Down >> T Words
Tear Down, definition of term: Tear Down
tear+down_pag1.html

Tear Apart >> T Words
Tear Apart, definition of term: Tear Apart
tear+apart_pag1.html

Tear Gas >> T Words
Tear Gas, definition of term: Tear Gas
tear+gas_pag1.html