expatriation
  放逐國外,放棄國籍
  Ex·pa·tri·a·tion n.  The act of banishing, or the state of banishment; especially, the forsaking of one's own country with a renunciation of allegiance.
     Expatriation was a heavy ransom to pay for the rights of their minds and souls.   --Palfrey.
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  expatriation
       n 1: the act of expelling a person from their native land; "men
            in exile dream of hope"; "his deportation to a penal
            colony"; "the expatriation of wealthy farmers"; "the
            sentence was one of transportation for life" [syn: exile,
             deportation, transportation]
       2: migration from a place (especially migration from your
          native country in order to settle in another) [syn: emigration,
           out-migration]