• IPA: /ɪnˈveɪʒən/


  1. A military action consisting of armed forces of one geopolitical entity entering territory controlled by another such entity, generally with the objective of conquering territory or altering the established government.
  2. The entry without consent of an individual or group into an area where they are not wanted.
    an invasion of mobile phones
    an invasion of bees
    an invasion of foreign tourists
  3. (medicine) The spread of cancer cells, bacteries and such to the organism.
  4. (surgery) The breaching of the skin barrier.

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Offline English dictionary