su·pe·ri·or·i·ty /sʊˌpɪriˈɔrəti, ˌsu, ˈɑr-/
  優越,優勢
  Su·pe·ri·or·i·ty n.  The quality, state, or condition of being superior; as, superiority of rank; superiority in merit.
  Syn: -- Preeminence; excellence; predominancy; prevalence; ascendency; odds; advantage.
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  superiority
       n 1: the quality of being superior [syn: high quality] [ant: inferiority,
             inferiority]
       2: the quality of being a competitive advantage [syn: favorable
          position, favourable position]
       3: displaying a sense of being better than others; "he hated
          the white man's superiority and condescension"
       4: the state of excelling or surpassing or going beyond usual
          limits [syn: transcendence, transcendency]