This designates that a single word is a reference to a single word. To show TWiki that it should be linked to, write a dot before it.
Hence if you have the 
WikiWord Ontology you can link to it as .Ontology
In fact, you can already force a single word link to a 
WikiWord by enclosing it in double square brackets, like this: 
.Ontology? 
This plugin allows you to write it without the square brackets. 
The syntax was chosen to be an extension of the Web.Topic syntax
Test:
   Syntax Rules(none) 
-  There are no customisable settings  
 
  Plugin Installation Instructions    
* To install this plug-in you must install this topic and the .pm file.
  Plugin Info 
Related Topics: TWikiPreferences, 
TWikiPlugins, 
DefaultPlugin
-- 
MartinCleaver? - 28 Nov 2001