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English definition of “overrun”

overrun

verb [T]  /ˌoʊ·vərˈrʌn/ (present participle overrunning, past tense overran  /ˌoʊ·vərˈræn/, past participle overrun) us  
to spread over an area quickly and in large numbers: The city has become increasingly unpleasant because it is overrun with tourists.
(Definition of overrun from the Cambridge Academic Content Dictionary © Cambridge University Press)
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