Ok enough teasing you with definitions of your faith.<quoted text>An atheist is a person who is not a theist.
There also exists a atheism, sometimes called "strong" or "explicit" atheism. With this type, the atheist explicitly denies the existence of any gods â making a strong claim which will deserve support at some point. Some atheists do this and others may do this with regards to certain specific gods but not with others. Thus, a person may lack belief in one god, but deny the existence of another god.
Atheists and freethinkers have defined atheism relatively consistently over the past couple of centuries. Although a few have focused solely on the sense of "strong" atheism, many more have differentiated between "weak" and "strong" atheism.