invasion

[in-vey-zhuhn]

noun

1. an act or instance of invading or entering as an enemy, especially by an army.

2. the entrance or advent of anything troublesome or harmful, as disease.

3. entrance as if to take possession or overrun.

   the annual invasion of the resort by tourists.

4. infringement by intrusion.

invasion

/ ɪnˈveɪʒən /

noun

1. the act of invading with armed forces

2. any encroachment or intrusion

   an invasion of rats

3. the onset or advent of something harmful, esp of a disease

4. pathol the spread of cancer from its point of origin into surrounding tissues

5. the movement of plants to a new area or to an area to which they are not native

Other Word Forms

• preinvasion adjective
• reinvasion noun

Word History and Origins

Origin of invasion¹

1400–50; late Middle English < Late Latin invāsīon- (stem of invāsiō ), equivalent to invās ( us ), past participle of invādere + -iōn- -ion; invade

Example Sentences

In planning that strongly echoes the ill-fated invasion of Iraq, Rubio is working with exiled opposition politicians on day-after regime change plans.

From Salon

It was, he said, deliberate and the activity had increased since Russia's full-scale invasion of Ukraine.

From BBC

The Boracay is currently registered in Benin, but has changed name and flag several times in recent years as part of alleged efforts to evade sanctions brought in response to Russia's full-scale invasion of Ukraine.

From BBC

In a Tuesday speech before a gathering of generals and admirals, he sketched out a controversial vision of dispatching troops to Democratic cities “as training grounds for our military” to combat an “invasion from within.”

From Los Angeles Times

Many Western countries have imposed sanctions on Russian energy by limiting imports and capping the price of its oil following the start of Russia's full-scale invasion of Ukraine in 2022.

From BBC

Related Words

• aggression 
• assault 
• breach 
• incursion 
• infiltration 
• infringement 
• intrusion 
• offensive 
• onslaught 
• raid 
• violation