'Kill' in the Bible

So I looked and here came a pale green horse! The name of the one who rode it was Death, and Hades followed right behind. They were given authority over a fourth of the earth, to kill its population with the sword, famine, and disease, and by the wild animals of the earth.

The locusts were not given permission to kill them, but only to torture them for five months, and their torture was like that of a scorpion when it stings a person.

Then the four angels who had been prepared for this hour, day, month, and year were set free to kill a third of humanity.

When they have completed their testimony, the beast that comes up from the abyss will make war on them and conquer them and kill them.