Definition of intrusion noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

The meaning of INTRUSION is the act of intruding or the state of being intruded; especially : the act of wrongfully entering upon, seizing, or taking possession of the property of another. How …

INTRUSION meaning: 1. an occasion when someone goes into a place or situation where they are not wanted or expected to…. Learn more.

3 meanings: 1. the act or an instance of intruding; an unwelcome visit, interjection, etc 2. a. the movement of magma from.... Click for more definitions.

INTRUSION definition: an act or instance of intruding. See examples of intrusion used in a sentence.

Define intrusion. intrusion synonyms, intrusion pronunciation, intrusion translation, English dictionary definition of intrusion. n. 1. The act of intruding or the condition of being intruded on. …

intrusion /ɪnˈtruːʒən/ n the act or an instance of intruding; an unwelcome visit, interjection, etc: an intrusion on one's privacy the movement of magma from within the earth's crust into spaces in …

There are five meanings listed in OED's entry for the noun intrusion. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

An intrusion is a deliberate move into someone else's territory — either literal or figurative. When your sister interrupts your conversation with that girl from math class, that's an intrusion. If …

Dec 14, 2025 · intrusion (countable and uncountable, plural intrusions) The forcible inclusion or entry of an external group or individual; the act of intruding. quotations She viewed sales calls …