This is topical for me as I have a client that wanted similar. The LanguageID of the content of the document is NOT going to work - this issue requires either Office or Windows language changes.

When I did some research on this topic it appeared that the values assigned to wdCaptionTable and wdCaptionFigure could be changed if you changed the language of the Application and then restarted Word. I tried this and had all Office apps open with the ribbon showing commands in the chosen language. BUT I was still getting 'Table' and 'Figure' so that didn't work for me. It also didn't help if I removed Normal.dotm and had Word recreate it.

Perhaps it depends on the language version of Windows rather than the language in Office.

I eventually gave up and created a vba Userform to allow the user to choose their preferred language and labels for both Tables and Figures. Then the macros I use for inserting captions lookup those stored preferences for the current doc.

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Andrew Lockton
Chrysalis Design, Melbourne Australia