in·va·sion /ɪnˈveʒən/
 入侵,侵略;侵害,侵犯;發病,發作
 in·va·sion /ɪnˈveʒən/ 名詞
 侵入,發病,侵襲,侵占
 In·va·sion n.
 1. The act of invading; the act of encroaching upon the rights or possessions of another; encroachment; trespass.
 2. A warlike or hostile entrance into the possessions or domains of another; the incursion of an army for conquest or plunder.
 3. The incoming or first attack of anything hurtful or pernicious; as, the invasion of a disease.
 Syn: -- Invasion, Irruption, Inroad.
 Usage: Invasion is the generic term, denoting a forcible entrance into a foreign country. Incursion signifies a hasty and sudden invasion. Irruption denotes particularly violent invasion. Inroad is entry by some unusual way involving trespass and injury.
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 invasion
      n 1: the act of invading; the act of an army that invades for
           conquest or plunder
      2: any entry into an area not previously occupied; "an invasion
         of tourists"; "an invasion of locusts" [syn: encroachment,
          intrusion]
      3: (pathology) the spread of pathogenic microorganisms or
         malignant cells to new sites in the body; "the tumor's
         invasion of surrounding structures"