(1911-67) the man who killed Lee HarveyOswald two days after Oswald was charged with killing President John F.Kennedy. Some people believed that these actions were part of a conspiracy (=secret plan) to kill the President, and that Ruby shot Oswald to prevent him from giving any information about it.
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.