Can I put - symbol into my domain name? Is that good for SEO?

[sunny]

you can put that symbol in ur domain name but surely it will effect your rankings on search engines but not that much which a domain without keyword will effect. Do one thing don't use it in domain but you can use it in title. People will see the difference on search engines.

If the domain is not available without that symbol ( which I think is the case ) then go for it. Its good to buy a domain with "-" instead of buying domain which has no keyword in it.

I hope this is the best answer