Revelation 6:8 And I looked, and behold, a pale horse! And its rider’s name was Death, and Hades followed him. And they were given authority over a fourth of the earth, to kill with sword and with famine and with pestilence and by the wild beasts of the earth.

Definition of Sword:

sword sôrd noun

1 A weapon consisting typically of a long, straight or slightly curved, pointed blade having one or two cutting edges and set into a hilt.

2 An instrument of death or destruction

3 The use of force, as in war.