- 1[intransitive, transitive] to enter a country, town, etc. using military force in order to take control of it Troops invaded on August 9th that year. invade something When did the Romans invade Britain?
- 2[transitive] invade something to enter a place in large numbers, especially in a way that causes damage or confusion Demonstrators invaded the government buildings. As the final whistle blew, fans began invading the field. The cancer cells may invade other parts of the body.
- 3 [transitive] invade something to affect something in an unpleasant or annoying way Does the press have the right to invade her privacy in this way? see also invasion, invasive
NAmE//ɪnˈveɪd//Verb Forms present simple I / you / we / they invade
he / she / it invades
past simple invaded
-ing form invading