intrusion

noun

in·​tru·​sion in-ˈtrü-zhən How to pronounce intrusion (audio)
1
: 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
2
: the forcible entry of molten rock or magma into or between other rock formations
also : the intruded magma

Examples of intrusion in a Sentence

Recent Examples on the Web Supporters of closer Western alignment also note Switzerland is almost completely surrounded by NATO countries, which act as a buffer against potential external intrusions. Fox News, 10 May 2024 And during at least one of the responses by a patrol car, GardaWorld was alerted, but the company did not initially register the intrusion, The Times has reported. Daniel Miller, Los Angeles Times, 9 May 2024 See all Example Sentences for intrusion 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'intrusion.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

Middle English, from Anglo-French, from Medieval Latin intrusion-, intrusio, from Latin intrudere

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of intrusion was in the 15th century

Dictionary Entries Near intrusion

Cite this Entry

“Intrusion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/intrusion. Accessed 24 May. 2024.

Kids Definition

intrusion

noun
in·​tru·​sion in-ˈtrü-zhən How to pronounce intrusion (audio)
1
: the act of intruding : the state of being intruded
2
: the entry by force of melted rock into or between other rock formations

Legal Definition

intrusion

noun
in·​tru·​sion in-ˈtrü-zhən How to pronounce intrusion (audio)
1
a
: the entry at common law of a stranger after a particular estate of freehold is determined before the person who holds it in remainder or reversion has taken possession
b
: the act of wrongfully entering upon, seizing, or taking possession of the property of another
2
: a trespassing on or encroachment upon something (as a right)
the Fourth Amendment demands that the showing of justification match the degree of intrusionBerger v. New York, 388 U.S. 41 (1968)
Last Updated: - Updated example sentences
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