Is cosmos the same as an ATOM?

I'm a bit confused about the terminology here. Could you clarify for me? Is the term 'cosmos' interchangeable with 'ATOM' in the context of cryptocurrency and blockchain technology? As I understand, ATOM is a specific digital asset or token associated with the Cosmos network, but I'm not sure if 'cosmos' itself refers to the same thing or if it has a broader meaning. Could you please elaborate on this point? It would be greatly appreciated if you could provide a clear explanation of the difference, if any, between these two terms.