BoldRun Method
Adds the bold character format to or removes it from the current run. If the run contains a mix of bold and non-bold text, this method adds the bold character format to the entire run.
expression.BoldRun
expression Required. An expression that returns a Selection object.
Remarks
For more information on using Microsoft Word with right-to-left languages, see Word features for right-to-left languages.
Example
This example toggles the bold formatting for the current selection.
Selection.BoldRun