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English definition of “immunity”

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immunity

noun [U] uk   /ɪˈmjuː.nɪ.ti/ us    /-ə.t̬i/
a situation in which you are protected against disease or from legal action: The vaccination gives you immunity against the disease for up to six months. He was granted immunity from prosecution because he confessed the names of the other spies.
(Definition of immunity from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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