What does the word "kill" mean?

Killing in the eight characters, also called seven kills, is the simplest point:

On behalf of boyfriends and lovers; On behalf of his son;

Seven kills represent villains, enemies, pressure and majesty.

Seven kills are strength, and a woman's life is to be able to control and repair men;

There are many meanings, which should be determined and outlined according to the combination of eight characters.