Ply v. t. [imp. & p. p. Plied p. pr. & vb. n. Plying ]
  1. To bend. [Obs.]
     As men may warm wax with handes plie.   --Chaucer.
  2. To lay on closely, or in folds; to work upon steadily, or with repeated acts; to press upon; to urge importunately; as, to ply one with questions, with solicitations, or with drink.
     And plies him with redoubled strokes   --Dryden.
     He plies the duke at morning and at night.   --Shak.
  3. To employ diligently; to use steadily.
     Go ply thy needle; meddle not.   --Shak.
  4. To practice or perform with diligence; to work at.
     Their bloody task, unwearied, still they ply.   --Waller.
  Plied imp. & p. p. of Ply.
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  ply
       n 1: one of the strands twisted together to make yarn or rope or
            thread; often used in combination; "three-ply cord";
            "four-ply yarn"
       2: (usually in combinations) one of several layers of cloth or
          paper or wood as in plywood
       v 1: provide what is desired or needed, especially support, food
            or sustenance; "The hostess provided lunch for all the
            guests" [syn: provide, supply, cater]
       2: apply oneself diligently; "Ply one's trade"
       3: travel a route regularly; "Ships ply the waters near the
          coast" [syn: run]
       4: wield vigorously; "ply an axe"
       5: use diligently; "ply your wits!"
       [also: plied]