From Longman Dictionary of Contemporary Englishinvadein‧vade /ɪnˈveɪd/ ●●○ verb 1 [intransitive, transitive]PM to enter a country, town, or area using military force, in order to take control of it The Romans invaded Britain 2,000 years ago.► see thesaurus at attack2 [transitive]ENTER to go into a place in large numbers, especially when you are not wanted Every summer, the town is invaded by tourists. Fans invaded the pitch at half time.3 [transitive]INTERFERE to get involved in something in an unwanted and annoying way What right does he have to invade my privacy? Patients are given the feeling that they mustn’t try to invade medical territory (=try to deal with things that are not their responsibility). → invasion→ See Verb table
Examples from the Corpus
invade• Enemy forces were almost certainly preparing to invade.• Sicily was invaded by the Normans, and later by the Saracens.• In his latest film, super-intelligent aliens invade Earth and try to take over.• A virus has invaded most of their computers.• Hitler invaded Poland in 1939.Origin invade (1400-1500) Latin invadere, from vadere “to go” 