This entire thread seems to be hinging on Snakobi having a skewed understanding of a number of words compared to everyone else.
A number of times a dictionary reference has been brought forth, but I don't think Snakobi is grasping that these words are terms for specific ideas...he seems to be using the word "atheist" in the same way as he uses "Christian" or "Buddhist", but atheism is just a word, there is no deeper meaning.
Atheist - A person who does not believe in a supreme being..... there is nothing more to it, this therefore means that Buddhists are also atheists.
And if i have been following Snakobi's posts correctly, he could also be described as atheist... I believe he mentioned he is pantheist, which (thank you RolStoppable) is the belief that God and nature are one and the same, thus God is the universe, and as such there is no supreme being.
Therefore a pantheistic belief system is also an atheistic belief system. (though that hinges on whether the universe actually being God can still constitute as 'no supreme being'... I guess that may depend on the specific pantheistic religion being followed)
The following are words that should not be mixed up with the religious beliefs themselves, they are just to separate between various different forms of religious belief, or lack thereof.
Theism - belief in a supreme being.
Can also be seperated into monotheism (belief in 1 God, e.g. Christianity, Islam) and polytheism (belief in multiple Gods, e.g. Hinduism)
Deism - belief in a God that created the universe but then no longer interfered with it.
Pantheism - belief that the universe is God. (I think Taoism would be included here)
Atheism - belief that there is no supreme being.
And arguably a totally seperate thing entirely is Agnosticism. It is generally used to describe someone who neither believes nor disbelieves in a deity, but that is why it is a seperate issue, it is not about belief but about knowledge. Personally I think I would describe myself as an agnostic-atheist, that being someone who does not believe in a God, but I also do not deny that there could be a God.