to intercede between someone and someone else. I decided to intervene between Ralph and his brother, who were arguing endlessly.There was no point in intervening between Bill and Bob.
to get involved in something. I will have to intervene in this matter. It's getting out of hand.I want to intervene in this before it becomes a major problem.
to step into a matter concerning someone or something. Megan said she would intervene with the bank manager on our behalf.Do I need to intervene with this process?