0 past simple and past participle of intervene
1 to intentionally become involved in a difficult situation in order to improve it or prevent it from getting worse:
2 to happen between two times or between other events or activities:
Two decades intervened between the completion of the design and the opening of the theatre.
There is increasing demand for the United Nations to intervene in trouble spots throughout the world.
I'd like to help but I don't have the power to intervene in this dispute.
The army's potentiality to intervene in politics remains strong.
Their only hope now is that the outside world will intervene but it is an increasingly forlorn hope.
The Bank of England intervened this morning to defend the pound .
The researcher intervened by raising awareness of this issue and providing language input which catered to the students' observed needs.
The top leadership was very much a hands-on leadership which continually intervened at all levels.
Their authority at the workplace as mill officials intervened more freely in their domain.
