I must admit that I’m a bit confused as to how you manage the practice thread. Can you clarify the procedure? Is the discussion going here or in the practice thread?
Anyway, here is my take on it. Feel free to dissect it, criticize it, turn it upside down/inside out, reformulate it, expand upon it, etc. I’m not emotionally attached to it, so it’s free game.
The dictionary definition of “atheist” is (Merriam-Webster): a person who does not believe in the existence of a god or any gods. Thus, an atheist is someone who lacks belief in a god or gods. To be more precise: atheism in its basic form is not the active belief that there is no god (singular or plural), but the absence of active belief in a god/gods. No more, no less.
Agnostic atheism: lack of belief in any god, combined with the realisation that the existence or non-existence of any god is not knowable, and can not be proven or disproven.
Strong atheism: in addition to a lack of belief in any god, the strong atheist makes the positive claim that no god(s) exist.
What atheism isn’t: belief in other gods or Satan – atheists do not worship any supernatural beings.