invasion

noun

in·​va·​sion in-ˈvā-zhən How to pronounce invasion (audio)
1
: an act of invading
especially : incursion of an army for conquest or plunder
2
: the incoming or spread of something usually hurtful

Examples of invasion in a Sentence

The enemy launched an invasion. The people live under a constant threat of invasion. The town is gearing up for the annual tourist invasion. protecting the house from insect invasion
Recent Examples on the Web Tikhonova was sanctioned by the US and UK in April 2022, after Russia’s invasion of Ukraine, for her work supporting the Russian defense ministry. Radina Gigova, CNN, 8 June 2024 Since launching his invasion in February 2022, Russian President Vladimir Putin has deliberately cultivated such fear within the U.S. and NATO. Matt Seyler, ABC News, 8 June 2024 The leaders both used those engagements used to underscore the urgent need to support Kyiv's fight against Russia's invasion. Chris Megerian, TIME, 8 June 2024 Even before the invasion, Russian officials sneered at Nabiullina for an approach to monetary policy that focused on inflation above all else. Rachel Ventresca, Fortune Europe, 7 June 2024 See all Example Sentences for invasion 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'invasion.' 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 invasioun "assault, attack," borrowed from Anglo-French invasion, envasioun, borrowed from Late Latin invāsiōn-, invāsiō "attack, taking possession by violence," from Latin invādere "to enter with hostile intent, assault, attack" + -tiōn-, -tiō, suffix of verbal action — more at invade

First Known Use

15th century, in the meaning defined at sense 1

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

Dictionary Entries Near invasion

Cite this Entry

“Invasion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/invasion. Accessed 25 Jun. 2024.

Kids Definition

invasion

noun
in·​va·​sion in-ˈvā-zhən How to pronounce invasion (audio)
: an act of invading
especially : entrance of an army into a country for conquest

Medical Definition

invasion

noun
in·​va·​sion in-ˈvā-zhən How to pronounce invasion (audio)
: the act of invading: as
a
: the penetration of the body of a host by a microorganism
b
: the spread and multiplication of a pathogenic microorganism or of malignant cells in the body of a host

Legal Definition

invasion

noun
in·​va·​sion in-ˈvā-zhən How to pronounce invasion (audio)
: the act of or an instance of invading

More from Merriam-Webster on invasion

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