retaining
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  Re·tain v. t. [imp. & p. p. Retained p. pr. & vb. n. Retaining.]
  1. To continue to hold; to keep in possession; not to lose, part with, or dismiss; to restrain from departure, escape, or the like. “Thy shape invisible retain.”
  Be obedient, and retain
  Unalterably firm his love entire.   --Milton.
     An executor may retain a debt due to him from the testator.   --Blackstone.
  2. To keep in pay; to employ by a preliminary fee paid; to hire; to engage; as, to retain a counselor.
     A Benedictine convent has now retained the most learned father of their order to write in its defense.   --Addison.
  3. To restrain; to prevent. [Obs.]
  Retaining wall Arch. & Engin., a wall built to keep any movable backing, or a bank of sand or earth, in its place; -- called also retain wall.
  Syn: -- To keep; hold; restrain. See Keep.
  retaining
       adj : designed for (usually temporary) retention; "a holding pen";
             "a retaining wall" [syn: holding]