a plan by English Catholics led by Guy Fawkes to kill King James I and destroy Parliament by blowing it up with explosives on November 5th 1605. The plan failed when one of the Catholics warned a relative not to attend Parliament that day and all the people in the Plot were caught and killed. People in the UK remember the event every November 5th on Guy Fawkes' Night.
Definition from the Longman Dictionary of Contemporary English Advanced Learner's Dictionary.
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