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Added 9 October 2026

intrusion

/ɪnˈtɹuːʒən/ noun

Latin root: intrūsiō Wiktionary

noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about intrusion at Wordnik → Where our words come from →

Any entry into an area not previously occupied.
an invasion of tourists
Entrance by force or without permission or welcome.
The forcing of molten rock into fissures or between strata of an earlier rock formation.

Origin

From Middle English intrusioun, from Old French intrusion, from Medieval Latin intrūsiō, from intrūdō, from Latin in- + trūdō.

From Wiktionary, via Kaikki.org (CC BY-SA)

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