American English

Definition of intrusion noun from the Oxford Advanced American Dictionary



    [uncountable, countable]
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  1. 1something that affects a situation or people's lives in a way that they do not want intrusion (on/upon something) They claim the noise from the new airport is an intrusion on their lives. intrusion (into something) This was another example of press intrusion into the affairs of celebrities.
  2. 2intrusion (into/on/upon something) the act of entering a place which is private or where you may not be wanted She apologized for the intrusion but said she had an urgent message.
See the Oxford Advanced Learner's Dictionary entry: intrusion