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invasion - definition and synonyms

 
 
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noun [countable/uncountable] invasion pronunciation in American English /ɪnˈveɪʒ(ə)n/
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singularinvasion
pluralinvasions
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  1. 1
    an occasion when one countrys army goes into another country to take control of it by force
    the Roman invasion of Britain under Julius Caesar
    an invasion force
  2. 2
    a situation in which a large number of people or things come to a place at the same time, especially in an annoying way
    The stores prepared for an invasion of last-minute Christmas shoppers.
    invasion of: the annual summer invasion of tourists
  3. 3
    medical the movement of a disease or of the cells that cause it from one area to another
    invasion of: an invasion of cancer cells

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