A witch can be defined as any individual, (male, female, alien, cosmic, etc...) who performs witchcraft or unorthodox magic that could possibly bring down a whole kingdom. They are good at seduction, deception, and sex which they use as a weapon once they are out of options or are in need of resources such as money, power, houses, weapons, food, etc...
The common ritual to become a witch includes assassinating renowned people, making a cult, becoming a member of a new cult, and worshiping an unorthodox god or goddess. Their most common trait is their love-hate relationships with mysticism, magic, and spirituality.
One such example inside of the story is Victoria Ringstone, the main heroine of the Witch-log novel, an aristocratic noble lady who had died in an unfortunate event and had had her body taken over by another soul, who from now on is to live in her place as a witch.
Despite their titles, witches are highly sensitive, emotional, and calculative beings and are absolutely not to be angered.
Beware of their wrath!