Although it couldn't be done automatically, you could create a two-column Excel workbook with the first column holding the terms and the second holding the extended definitions. That workbook could then be incorporated into a macro that uses an interactive Find/Replace process to update the document. For an example of such an approach, see: https://www.msofficeforums.com/word-...html#post31849

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]