1. To kill as punishment for capital crimes.
    There are certain states where it is lawful to execute prisoners convicted of certain crimes.
  2. To carry out; to put into effect.
    Your orders have been executed, sir!
    I'll execute your orders as soon as this meeting is adjourned.
  3. To perform.
    to execute a difficult piece of music brilliantly
    to execute a turn in ballet
  4. To cause to become legally valid; as, to execute a contract.
  5. To start, launch or run; as, to execute a program.

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