I'm looking for dictionaries for download. I have found word lists from some Scrabble game sites, etc. but these lists are incomplete and do not cover word definitions and, perhaps, a thesaurus.
I also know about dictionary APIs, unfortunately they either have query limitations or do not allow downloading their database.
I should mention that my interest in this is strictly personal.
** NOTE **
I should also mention that this question is not about a program (or software), but the raw files. I am hoping something like XML, JSON, MySQL dump, text, etc. But not necessarily limited to this.
I know it's a bit to ask, but I'd like to know if such thing even exists? Is there anyone who would know where I can download en entire dictionary database, with word description, etc. (and possibly the synonyms)?