Password Dictionary is a list of English words and phrases that cannot be used as a password with SET PASSWORD unless the DISPWDDIC flag is set in the user record. This list is contained in SYS$SYSTEM:VMS$PASSWORD_DICTIONARY.DATA.
To add passwords to the dictionary, follow the instructions: 1. Create a file containing passwords you would like to add to the dictionary. Each password should be on a separate line and in lowercase, as follows:
$ CREATE LOCAL_PASSWORD_DICTIONARY.DATA somefamous localheroes Ctrl/Z
2. Enable SYSPRV and merge your local additions:
$ SET PROCESS/PRIVILEGE=SYSPRV $ CONVERT/MERGE/PAD LOCAL_PASSWORD_DICTIONARY.DATA - _$ SYS$LIBRARY:VMS$PASSWORD_DICTIONARY.DATA