📖 WordNook

operative

adjective
  1. being in force or having or exerting force
    “operative regulations”
  2. (of e.g. a machine) performing or capable of performing
    running
  3. relating to or requiring or amenable to treatment by surgery especially as opposed to medicine
    surgical
  4. effective
noun
  1. someone who can be employed as a detective to collect information
    piprivate detectiveprivate eyeprivate investigatorshamussherlock
  2. a person secretly employed in espionage for a government
    secret agentintelligence officerintelligence agent