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$Label
A global merge field type to use when referencing a custom label.
Usage
Use this expression in a Visualforce page to access a custom label. The returned value depends on the language setting of the contextual user. The value returned is one of the following, in order of precedence:
Example
1<apex:page>
2 <apex:pageMessage severity="info"
3 strength="1"
4 summary="{!$Label.firstrun_helptext}"
5 />
6</apex:page>