1.VerbTo kill, especially as punishment for a capital crime.
"There are certain states where it is lawful to execute prisoners convicted of certain crimes.; According to international treaties, it is illegal to execute prisoners of war."
2.VerbTo 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.VerbTo perform.
"to execute a difficult piece of music brilliantly; to execute a turn in ballet"
4.VerbTo carry out, to perform an act; to put into effect or cause to become legally binding or valid (as a contract) by so doing.
"to execute a contract"
5.VerbTo start, launch, or run.
"to execute a program"
6.VerbTo run, usually successfully.
"The program executed, but data problems were discovered."