Shirk means oneness of Allah with all the creations, like considering the existence of all the creations to be the existence of Allah, that is atheism that excludes the existence of Allah above the creations.
Shirk means oneness of Allah with all the creations. This is like. Shirk is considering the existence of all the creations. This is to be the existence of Allah. Allah is atheism. This atheism excludes the existence of Allah above the creations.