Dictionary

link - dev.office.com/docs/add-ins/word/dictionary-task-pane-add-ins

Defines settings that implement additional dictionary support.
Available in Excel and Word

<OfficeApp> 
<Dictionary> 
   <TargetDialects/> 
   <CitationText/> 
   <QueryUri/> 
   <DictionaryName/> 
   <DictionaryHomePage/> 
</Dictionary> 

TargetDialects -
CitationText -
QueryUri -
DictionaryName -
DictionaryHomePage -