I have seen many premium domains and the non premium ones.

Can someone define the premium domains?

How do you decide that if the given domain name is a premium or not.

If i like that domain name then it is a premium domain name for me.

For everyone else I think the premium domain name is the domain name which has a good meaning and has a huge industry behind it.

Right. I have a customer who said he is looking for premium domain names. And is willing to send the money instantly. Lets hope I find some premium ones and make a good commission on brokering it.

Everyone like premium domain names but right now in domain market mostly premium domain names are registered so not available. I have not a single premium domain name.

So I registered domain which is pronounceable and then develop it and make it premium because yahoo or google are not a premium domain names but they made these domains premium them self.

By the way your question is what is premium domain.
I think it should be meaningful, pronounceable and length less then 9 or 10 characters and it should be .com

Read this Link : http://www.premiumdomain.com/whatisit/

Thanks.