UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ɪnˈveɪdər/

WordReference Random House Learner's Dictionary of American English © 2020
in•vade /ɪnˈveɪd/USA pronunciation   v.,  -vad•ed, -vad•ing. 
  1. to enter forcefully as an enemy;
    go into with hostile intent: [+ object]The dictator invaded his neighboring states.[no object]He was ready to invade.
  2. to enter and affect in a harmful or destructive way:[+ object]viruses that invade the bloodstream.
  3. to intrude upon;
    encroach or infringe on:[+ object]to invade someone's privacy.
  4. to enter or penetrate:[+ object]City dwellers invaded the suburbs.
in•vad•er, n. [countable]See -vade-.

WordReference Random House Unabridged Dictionary of American English © 2020
in•vade  (in vād),USA pronunciation v.,  -vad•ed, -vad•ing. 
  1. to enter forcefully as an enemy;
    go into with hostile intent:Germany invaded Poland in 1939.
  2. to enter like an enemy:Locusts invaded the fields.
  3. to enter as if to take possession:to invade a neighbor's home.
  4. to enter and affect injuriously or destructively, as disease:viruses that invade the bloodstream.
  5. to intrude upon:to invade the privacy of a family.
  6. to encroach or infringe upon:to invade the rights of citizens.
  7. to permeate:The smell of baking invades the house.
  8. to penetrate;
    spread into or over:The population boom has caused city dwellers to invade the suburbs.

  1. to make an invasion:troops awaiting the signal to invade.
in•vada•ble, adj. 
in•vader, n. 
  • Latin invādere, equivalent. to in- in-2 + vādere to go; see wade
  • 1485–95
    • 1, 2.See corresponding entry in Unabridged penetrate, attack.

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