posted by Katie.
That is pretty close to my definition of a demon.
Also, God is a being of supreme good, "angels" are the dedicated servants of that being. Now, everything MUST have an opposite. Therefore, the Adversary is a being of supreme evil, and "demons" are the servants of that being.
However, i think "demon" is a bit of a misnomer. I know some 'kin who call themselves "demon", and describe themselves as beings of chaos, not evil, but chaos. I think another term for them would be "chaos entities".
"Demon" is just a word, used in many different contexts through the ages.
I choose to apply the word "demon" to entities in the service of the Adversary, who take immense pleasure in causing spiritual, physical, and mental pain to whomever they perceive as against them. They can take over the physical body of a person, thereby causing even more pain, and receiving more pleasure from that act. They feel no remorse for the wrong they do, no regret for the innocent people they help to destroy. I will fight those beings will everything I have. NO ONE deserves the sort of pain those entities put them through.
If they don't bother me, I live and let live, and let them be. But if something attacks me or an innocent person, with the sole intent of causing harm, they'll get what's coming to them.