Suicide
When a person intentionally kills themselves, it is called suicide.
When a person voluntarily sets themselves on fire, it is called self-immolation. This act is often done as a form of protest or sacrifice, with significant cultural, religious, or political implications.
A person with a big ego can be called arrogant, conceited, or self-absorbed.
A self-centered person is often referred to as narcissistic or egocentric. They tend to focus primarily on themselves and their own needs, often lacking empathy or consideration for others.
No, self-sufficient means that you are independent.
A person with low self-esteem is often referred to as having poor self-image or low self-worth. They may have feelings of inadequacy or lack of confidence in themselves.
A person who commits suicide is also called a suicide. Or..."dead" is probably a good word for it. :)
Aperson who kills buffalo for their valuable hides is called a Buffalo Hunter.
Self-Hatred
Executioner Or headsman.
a murderer?
sasuke kills him after deidra attempts self destruct.
autodidact
Self-worth or self-esteem.
That is called Manslaughter. Which means to kill someone by accident.
The person that suffered of mental disorder and hurts himself is called "self-injurer"
Autoscien
The organisms which eat insects are called insectivores.