Definition: The word "evil" is an adjective and a noun. As an adjective, it describes something that is very bad, harmful, or morally wrong. As a noun, it refers to the quality of being bad or harmful.
Evilness (noun): The quality of being evil.
Evildoer (noun): A person who does evil things.
The evil eye: A look that is believed to cause harm or bad luck to someone.
Fight fire with fire: To respond to an attack or harmful action with similar tactics, often implying a use of "evil" means to combat "evil".
"Evil" is a versatile word that describes badness and harm, both in actions and in the nature of people. It is often used in literature, moral discussions, and everyday conversations to refer to things that are morally wrong or harmful.