The word(s) "kill" appears 40 time(s) in 33 verse(s) in Quran in Muhammad Pickthal translation.

(31) And Pharaoh said: Suffer me to kill Moses, and let him cry unto his Lord. Lo! I fear that he will alter your religion or that he will cause confusion in the land.

(32) And a believing man of Pharaoh's family, who hid his faith, said: Would ye kill a man because he saith: My Lord is Allah, and hath brought you clear proofs from your Lord? If he is lying, then his lie is upon him; and if he is truthful, then some of that wherewith he threateneth you will strike you. Lo! Allah guideth not one who is a prodigal, a liar.

(33) O Prophet! If believing women come unto thee, taking oath of allegiance unto thee that they will ascribe no thing as partner unto Allah, and will neither steal nor commit adultery nor kill their children, nor produce any lie that they have devised between their hands and feet, nor disobey thee in what is right, then accept their allegiance and ask Allah to forgive them. Lo! Allah is Forgiving, Merciful.