noun
1. any entry into an area not previously occupied (Freq. 3)
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an invasion of tourists
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an invasion of locusts
2. entry to another's property without right or permission
• Syn: ↑trespass, ↑violation, ↑intrusion, ↑usurpation
• Derivationally related forms: ↑intrude (for: ↑intrusion), ↑violate (for: ↑violation), ↑encroach, ↑trespass (for: ↑trespass)
• Hypernyms: ↑wrongdoing, ↑wrongful conduct, ↑misconduct, ↑actus reus
• Hyponyms: ↑inroad
3. influencing strongly
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they resented the impingement of American values on European culture
• Syn: ↑impingement, ↑impact
• Hypernyms: ↑influence
Useful english dictionary. 2012.