To invade is to enter a country illegally or to attack it militarily. When the United States invaded Iraq in 2003, they were breaking the law by doing so.

  • The invaders were able to enter the country without being noticed.

  • The invaders were able to attack the city without being noticed.

Definition of invade


to intrude upon, infringe, encroach on, violate


encroach upon, intrude on, obtrude upon


march aggressively into another's territory by military force for the purposes of conquest and occupation




occupy in large numbers or live on a host


infest, overrun


penetrate or assault, in a harmful or injurious way

Nearby Words

invade Pronunciation in a video

Example Sentences for invade

  • 1

    In response, the United States military began a campaign to unseat the invaders.

  • 2

    An animal invaded your realm.

  • 3

    Legitimacy isn't in the eye of the invader.

  • 4

    Cut off the head of the invader.

  • 5

    Focus on identitying the invaders inside.

  • 6

    The Japanese invade another country.

  • 7

    The area was again the target of invaders.

  • 8

    The expeditionary force invaded Greece.

  • 9

    At first, with the assistance of the Zoroastrians, the invaders are repelled.

  • 10

    Not all of the antagonistic invaders are from Mars.