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English definition of “invasion”

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invasion

noun [C or U] uk   /ɪnˈveɪ.ʒən/ us  
B2 an occasion when an army or country uses force to enter and take control of another country: They were planning to mount an invasion of the north of the country.C2 an occasion when a large number of people or things come to a place in an annoying and unwanted way: the annual invasion of foreign touristsC2 an action or process that affects someone's life in an unpleasant and unwanted way: an invasion of privacy
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(Definition of invasion from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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