As salamu alaikum wa rahmatullah wa barakatuhu
I happen to be a believer in the one true God; the God of the Jews, the Christians, and the Muslims. The God of Adam, Noah, Abraham, Moses, Jesus, Muhammad and all of the Prophets (peace be upon them all). The one who made me, you, and everything good and pure. The one the only true God.
Every supernatural being claiming to be a god/goddess, is a demon. And every demon is a jinn (before humans that were made from the earth and after the creatiion of angels which were made of light. God made the jinn out of smokeless fire), but not all jinn are demons. There are good jinn and there are bad jinn which are the demons that have fallen from the grace of God.
The word "Allah" simply means "the God." "Al" means "the" and "lah" means "God" in Arabic. The word "Islam" literally means "peace" from the root word "salaam." And, the word "Muslim" is translated to "a peacemaker" or "submitting to peace."