intervention

noun

• the action or process of intervening:a high degree of state intervention in the economy [count noun]:repeated interventions by central banks
• interference by a state in another’s affairs:the government was reported to be considering military intervention
• action taken to improve a medical disorder:two patients were referred for surgical intervention
• [count noun] an occasion on which a person with an addiction or other behavioural problem is confronted by a group of friends or family members in an attempt to persuade them to address the issue:as her health worsened, her daughters considered staging an intervention