This is a forum. In a forum, definitions might be long, and they might be short. It simply depends on who is presenting the definitions, and why. If we want to get into picky, long-winded definitions, just so that we can argue all kinds of picky things, that's okay. Remember that the more the words, the less the meaning. But sometimes that kind of thing is fun.
Study, Talk.
Do that in that succession and you will save every people's time.
I agree with the Oxford dictionary definition stated here.
Do fish believe or disbelieve in a supreme being? Don't really know. But probably not.
How about cows? Trees? Grass? Rocks? Probably none of these. Maybe not even elephants and dolphins and whales and chimpanzees that all seem to have rather high intelligences.
But we all DO know who believes or disbelieves in a supreme being, don't we. It's human beings. If the others have the ability to believe or disbelieve, it is a limited ability.
Know what this means? It means that mankind is a supreme being. At least with regard to cows and trees and grass and rocks and elephants and dolphins and whales and chimpanzees, yes, and even fish, even though these listed things don't believe or disbelieve (very much).
I agree.
Come on, atheists. Think. Since atheism is completely false, yet atheists believe in it, atheism is a religion... even a cult.
Religion needs Faith:
atheism is a Sin (2nd Commandment).
:-|
EDIT: Not trying to suggest that Cash BTC is an atheist here.
You shouldn't.
Oh you are so funny.

But seriously speaking. Anybody who thinks that there is no supreme being, doesn't realize that by thinking this way, he is setting himself up as the supreme being that he is attempting to disavow. The plants and animals don't have the ability to think this way... make determinations about the existence of supreme beings. Certainly inanimate material can't think at all!
Atheists are simply supreme beings trying to believe that they don't exist. Of course, individually, after they die, they don't exist any more. But after death, they can't make any determinations of anything. Thus, they aren't atheists any longer, just as they aren't supreme beings then.
Ateism is a Sin: atheist are sinners that deserve death.
27 Then he said to them, This is what the Lord, the God of Israel, says: Each man strap a sword to his side. Go back and forth through the camp from one end to the other, each killing his brother and friend and neighbor.
28 The Levites did as Moses commanded, and that day about three thousand of the people died.
29 Then Moses said, You have been set apart to the Lord today, for you were against your own sons and brothers, and he has blessed you this day.
- Ex 32, 27:28
Why do atheists hate religion? They hate religion simply because they can't get away from it, no matter if there is a God or not. They simply don't have control in this area. And nobody likes being out of control.
That's not your problem.
:-|
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I'm an Atheist. I don't hate religions. I just believe in science that's all. But what I realized is that many wars, conflicts happened and still happen because of different religions. This is silly!!
I have friends who are jews, christians (catholic, evangelic orthodox), moslems. None of them asked me why I'm not religious. But from time to time they're arguing with each other and I'm just sitting there and shaking my head.
What's your definition of atheism?
Thank You and best regards.