Which definition best describes 'intervene'?

• A. To get involved or become involved in a situation in order to change its suspected outcome.
• B. To interrupt.
• C. To be situated between two things.
• D. To end a conflict peacefully.

Answer: (A)

Intervene means to step in and take action in a situation to influence what happens, often to prevent harm or change the outcome. It emphasizes active involvement to alter events rather than simply stopping something momentarily (interrupt), existing between two things (being between), or resolving a conflict on its own (ending a conflict peacefully). So the sense of taking decisive, proactive steps to affect what could happen makes the definition fit best.