Spanish translation: intervenir, involucrarse, tomar acción, mediar
Definition: To step in is to become involved in a situation where you think you could help.
Used in sentences:
I had to step in when the discussion became too tense and an argument was about to start.
Sometimes the police need to step in when there is a disruption.
The Board decided to step in when the CEO got into trouble.
Related words or phrases: Intervene, intercede, get involved, take action, mediate