1 to enter a country, town, etc. using military force in order to take control of it:
[V] Troops invaded on August 9th that year. * [VN] When did the Romans invade Britain?
2 [VN] 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 [VN] to affect sth in an unpleasant or annoying way:
Do the press have the right to invade her privacy in this way?
seealsoINVASION, INVASIVE
