intrusion.
The forcible inclusion or entry of an external group or individual; the act of intruding.
Meaning & usage
The forcible inclusion or entry of an external group or individual; the act of intruding.
She viewed sales calls as an unwelcome intrusion.
The forcible inclusion or entry of an external group or individual; the act of intruding. A penetration by hackers, a computer virus, etc.
The intrusion of the virus rendered our other security efforts useless.
The forcible inclusion or entry of an external group or individual; the act of intruding. The insertion of a phoneme into the pronunciation of a word despite its absence from the spelling. (e.g. intrusive r)
Something that is intrusive or that has arisen from an act of intruding. A feeling of being intruded upon; the state or condition of being intruded.
Something that is intrusive or that has arisen from an act of intruding. Magma forced into other rock formations; the rock formed when such magma solidifies.
Something that is intrusive or that has arisen from an act of intruding. A structure that lies within a historic district but is nonhistoric and irrelevant to the district.
Something that is intrusive or that has arisen from an act of intruding. An involuntarily arising idea or memory that is nuisant and falsifies an accurate impression of the world.
Something that is intrusive or that has arisen from an act of intruding. A swarm or nest of cockroaches, infesting a structure.
When I turned on the light, scattered mats of cockroach intrusions scurried into the walls.
The sight of an intrusion had me running for an exterminator.
Where this word comes from
From Middle English intrusioun, from Old French intrusion, from Medieval Latin intrūsiō, from intrūdō, from Latin in- + trūdō.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.