invasion

noun
in·​va·​sion | \ in-ˈvā-zhən How to pronounce invasion (audio) \

Definition of invasion

1 : an act of invading especially : incursion of an army for conquest or plunder
2 : the incoming or spread of something usually hurtful

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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
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Recent Examples on the Web

Richard Sorge, a Russian spy in Germany’s Embassy in Japan, gained detailed knowledge about the approaching German invasion of Russia in 1941, and passed it on. Adam Gopnik, The New Yorker, "Are Spies More Trouble Than They’re Worth?," 26 Aug. 2019 All group chats are invasions of privacy—bits of private life invading professional and social spheres throughout the day. Wired, "The Beautiful Potential of Never-Ending Bachelor Parties," 22 Aug. 2019 Smith blunders, too, when discussing the Red Army’s rout following the German invasion in June 1941. Sean Williams, Harper's magazine, "Letters," 19 Aug. 2019 Similarly, the Ohio Military Reserve’s mission when the Ohio Militia formed in 1803 was to defend against Indian attacks, and later, a possible British invasion during the War of 1812. Brian Albrecht, cleveland.com, "Ohio Military Reserve augments National Guard," 11 Aug. 2019 This is an invasion of personal space to those around you. Christen A. Johnson, chicagotribune.com, "How to confront someone talking on speakerphone in public," 26 July 2019 But some say the practice is an invasion of privacy that jeopardizes sensitive data. Julia Wick, latimes.com, "Essential California: L.A. gets its first UNESCO World Heritage Site designation," 8 July 2019 The June 6, 1944 battle was the largest seaborne invasion in world history, involving more than 150,000 troops from the U.S., Britain and Canada. Leada Gore | Lgore@al.com, al.com, "D-Day 75th anniversary: See moving tribute as planes fly over Normandy, France," 6 June 2019 As for the plants themselves, florist Denise Fasanello says that absolutely no harm comes to these pretty perennials if there's an ant invasion. Blair Donovan, Country Living, "Fact or Fiction: Do Peonies Attract Ants?," 27 Mar. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'invasion.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of invasion

15th century, in the meaning defined at sense 1

History and Etymology for invasion

Middle English invasioune, from Anglo-French invasion, from Late Latin invasion-, invasio, from Latin invadere to invade

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Statistics for invasion

Last Updated

2 Sep 2019

Look-up Popularity

Time Traveler for invasion

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

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More Definitions for invasion

invasion

noun

English Language Learners Definition of invasion

: the act of entering a place in an attempt to take control of it
: the act of entering a place in large numbers especially in a way that is harmful or unwanted

invasion

noun
in·​va·​sion | \ in-ˈvā-zhən How to pronounce invasion (audio) \

Kids Definition of invasion

: an act of invading

invasion

noun
in·​va·​sion | \ in-ˈvā-zhən How to pronounce invasion (audio) \

Medical Definition of invasion

: 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

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invasion

noun
in·​va·​sion | \ in-ˈvā-zhən How to pronounce invasion (audio) \

Legal Definition of invasion

: the act of or an instance of invading

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More from Merriam-Webster on invasion

Rhyming Dictionary: Words that rhyme with invasion

Thesaurus: All synonyms and antonyms for invasion

Spanish Central: Translation of invasion

Nglish: Translation of invasion for Spanish Speakers

Britannica English: Translation of invasion for Arabic Speakers

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