Talk:Kichimura Washuu/@comment-26689808-20151026090757/@comment-26689808-20151026205225

Here's how I interpret the difference.

SS~ are ghouls that the CCG has little information on, and can't specifically pinpoint their level of threat. They could range anywhere between SS and SSS.

SS+ are ghouls that the CCG would deem as being a definitively bigger threat than regular SS rated ghouls, but are still not dangerous enough to be placed in the SSS rated tier.

In other words, "~" is vague while "+" is specific.