Definition of "Execute" :

verb: sign in the presence of witnesses

"The President executed the treaty."

verb: put in effect

"Execute the decision of the people."

verb: carry out or perform an action

"The skater executed a triple pirouette."

verb: kill as a means of socially sanctioned punishment

"In some states, criminals are executed."

verb: murder in a planned fashion

"The Mafioso who collaborated with the police was executed."

verb: carry out a process or program, as on a computer or a machine

"The computer executed the instruction."

verb: carry out the legalities of

"Execute a will or a deed."