I have the English version of Word 2001.

There's a file "English Dictionary" in the folder "Office".

There's a folder "Proofing Tools" in the folder "Shared Applications" with this content:

• Australian Dictionary
• Australian Hyphenation
• English (US) Word Forms
• English Grammar Dictionary
• English Hyphenation
• English Spelling Dictionary
• Hyphenation
• MS Grammar 2
• MS Spelling 3
• MS Thesaurus
• UK English Thesaurus
• US English Thesaurus

I search the similar files for Dutch, French and German.