Syntactical Saints,

The following statement caught my eye during a recent skimming of the Perl Pocket Reference, Fourth Edition on Page 9 under "Literal Values" => "Scalar Values" => "String": 
    Class::
        A value that is mostly equivalent to "Class".
I don't understand what this is trying to convey.

I know :: is used as a directory separator for Modules, and to specify Package names. Am I missing something else?

Thanks.

P.S. Is :: referred to as "the double colon" within the Perl coummunity, or does it have a neater name?

Update: Here is the surrounding material to provide more context (i.e., as much clarification as I can): 
Literal Values
Scalar Values
    ...
    ...
    String
        'abc'
            Literal string, no variable interpolation...except...
        "abc"
            A string in which variables are interpolated...
        `command`
            Evaluates to the output of the command.
        Class::
            A value that is mostly equivalent to "Class".
        1.2.3    v.5.6.0.1
            A string ("v-string") composed of the specified ordinals. 
+...
        <<identifier
            Shell-style "here document."
        __FILE__
            The name of the program file.
        __PACKAGE__
            The name of the current package.

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In reply to ::'s role in strings by eff_i_g

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