enter (a place, situation, or sphere of activity) in large numbers, especially with intrusive effects, encroach or intrude on, spread or pervade throughout (an area or group of people)

an invasion of privacy, invade the airwaves, invade someone's thoughts

invade someone's privacy, invade someone's space, invade one's turf

Formal and Informal Expressions of invade

In different contexts, you can replace 'invade' with suitable alternatives. In a more formal setting, 'penetrate, trespass' is apt. In informal speech or writing, 'butt in, muscle in' is a commonplace synonym.

invade: Explore its Definition & Usage

invade Definition

1enter (a place, situation, or sphere of activity) in large numbers, especially with intrusive effects
2encroach or intrude on
3spread or pervade throughout (an area or group of people)

Using invade: Examples

Take a moment to familiarize yourself with how "invade" can be used in various situations through the following examples!

Example
The enemy army invaded the country.
Example
The privacy of my home was invaded by the paparazzi.
Example
The virus has invaded every part of the body.
Example
The new technology is invading every aspect of our lives.

invade Synonyms and Antonyms

Synonyms for invade

Antonyms for invade

Idioms Using invade

an invasion of privacy
an intrusion into someone's private life without their permission
Example
The publication of her private photos was a clear invasion of privacy.
invade the airwaves
to broadcast or transmit on a large scale, often in a way that is intrusive or annoying
Example
The new radio station is invading the airwaves with its loud commercials.
invade someone's thoughts
to occupy someone's mind or preoccupy their thoughts
Example
Ever since the accident, thoughts of mortality have invaded his mind.

Phrases with invade

invade someone's privacy
to intrude on someone's private life without their permission
Example
The tabloids are always trying to invade celebrities' privacy.
invade someone's space
to come too close to someone or enter an area that they consider to be their own
Example
I don't like it when strangers invade my personal space.
invade one's turf
to encroach on someone's territory or area of expertise
Example
The new employee is trying to invade my turf by taking over my projects.

Origins of invade

from Latin 'invadere', meaning 'to go into, enter upon'

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Summary: invade in Brief

'Invade' [ɪnˈveɪd] means to enter a place or situation in large numbers, often with intrusive effects. It can refer to physical invasion, as in 'The enemy army invaded the country,' or metaphorical invasion, as in 'The new technology is invading every aspect of our lives.' The term also extends to phrases like 'invade someone's privacy,' and idioms like 'an invasion of privacy,' denoting intrusion into someone's private life.