Intrusion and Penetration

Intrusion

Intrusion noun - Entrance by force or without permission or welcome.

Penetration is a synonym for intrusion in invasion topic. In some cases you can use "Penetration" instead a noun "Intrusion", when it comes to topics like encroachment.

Penetration

Penetration noun - The act of entering into or through something.
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Synonyms for Penetration

Intrusion is a synonym for penetration in invasion topic. You can use "Intrusion" instead a noun "Penetration", if it concerns topics such as encroachment.

Cite this Source
Penetration and Intrusion. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/intrusion/penetration
Intrusion & Penetration. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/intrusion/penetration>.
Penetration or Intrusion. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/intrusion/penetration.
Google Ngram Viewer shows how "intrusion" and "penetration" have occurred on timeline