Definition of "invade"

invade

/ɪnˈveɪd/

verb
third-person singular simple present invades, present participle invading, simple past and past participle invaded
1. (transitive) To move into.
  Quotations
  Which becomes a body, and doth then invade / The state of life, out of the griesly shade.
  1590, Edmund Spenser, “Book III, Canto VI”, in The Faerie Queene. […], London: […] [John Wolfe] for William Ponsonbie, stanza 37
2. (transitive) To enter by force in order to conquer.
  Quotations
  When a typical gaffe has him invading the Beagle and trying to rob Charles Darwin (David Tennant), he learns that his beloved “parrot” Polly is actually a dodo bird.
  2012 April 26, Tasha Robinson, “Film: Reviews: The Pirates! Band Of Misfits”, in The Onion AV Club‎
  And this year, some of the granite facades have a new addition - the blue and yellow of the flag of Ukraine. It's hardly surprising to see the Scots, a nation more attuned to independence than some, showing solidarity with a country brutally invaded by Russia.
  2022 November 30, Paul Bigland, “Destination Oban: a Sunday in Scotland”, in RAIL, number 971, page 75
3. (transitive) To infest or overrun.
4. To attack; to infringe; to encroach on; to violate.
5. To make an unwelcome or uninvited visit or appearance, usually with an intent to cause trouble or some other unpleasant situation.