dis·card /dɪsˈkɑrd, ˈdɪsˌ/
  (vt.)丟棄,拋棄,解僱(vi.)墊牌墊牌,拋棄
  discard
  廢除
  discard
  廢除
  Dis·card v. t. [imp. & p. p. Discarded; p. pr. & vb. n. Discarding.]
  1. Card Playing To throw out of one's hand, as superfluous cards; to lay aside (a card or cards).
  2. To cast off as useless or as no longer of service; to dismiss from employment, confidence, or favor; to discharge; to turn away.
     They blame the favorites, and think it nothing extraordinary that the queen should . . . resolve to discard them.   --Swift.
  3. To put or thrust away; to reject.
     A man discards the follies of boyhood.   --I. Taylor.
  Syn: -- To dismiss; displace; discharge; cashier.
  Dis·card, v. i. Card Playing To make a discard.
  Dis·card, n. Card Playing The act of discarding; also, the card or cards discarded.
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  discard
       n 1: anything that is cast aside or discarded
       2: (cards) the act of throwing out a useless card or to failing
          to follow suit
       3: getting rid something that is regarded as useless or
          undesirable [syn: throwing away]
       v : throw or cast away; "Put away your worries" [syn: fling, toss,
            toss out, toss away, chuck out, cast aside, dispose,
            throw out, cast out, throw away, cast away, put
           away]