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
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 of invasion from the Web
Ricky Gray was the last Virginia inmate to be executed in January for killing two young girls in a brutal 2006 home invasion.
JW: Barely six months after suffering a stab wound to her playing hand in a home invasion, Petra Kvitova wins Wimbledon for the third time.
Bob Cauffman, president of Residents Against the Invasion of Land by Eminent Domain, an opposition group based in Porter County, questioned the financial statements provided by Great Lakes and how officials would meet their financial obligations.
David Kellum, the county entomologist who netted the Lewis and Clark of the Africanized bee invasion, took me on a tour of Live Oak Park and talked me down.
The exercise capped off with an amphibious invasion by U.S. Marines from Marine Corps Europe Africa.
A Wonder Lake man has been arrested in the home invasion and killing of an Air Force veteran near McHenry.
Sanchez and Julius Jovan Garza, 24, also formerly of Hammond, were accused of killing Trinka and Guinn in a home invasion.
While training the exile brigade’s tank division for the Bay of Pigs invasion, her husband was captured by his own cousin, a member of Castro’s army, and imprisoned in Cuba for nearly two years.
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.
Origin and Etymology of invasion
Middle English invasioune, from Anglo-French invasion, from Late Latin invasion-, invasio, from Latin invadere to invade
First Known Use: 15th centurySee Words from the same year
INVASION Defined for Kids
Definition of invasion for Students
: an act of invading
Medical Definition of invasion
: the act of invading: asa: the penetration of the body of a host by a microorganismb: the spread and multiplication of a pathogenic microorganism or of malignant cells in the body of a host
Legal Definition of invasion
: the act of or an instance of invading
Seen and Heard
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