an official US report about the murder of President John F. Kennedy. Earl Warren and a special committee, called the Warren Commission, studied the facts relating to Kennedy's murder and decided that the President was killed by a single person, and that there was no conspiracy (=a secret plan involving several people). Many people, however, do not accept this decision, and believe that Kennedy's death was organized by political opponents
Definition from the Longman Dictionary of Contemporary English Advanced Learner's Dictionary.
Dictionary pictures of the day
Do you know what each of these is called?
Click on any of the pictures above to find out what it is called.