Metadictionary

I'm not sure the need for this is immediately apparent, or, for that matter, if the thing doesn't already exist in some form or another, but what I have in mind is a collation of all human words into one dictionary, with their English meanings. Or whichever language you prefer as the common one. This would be a metadictionary, and as various languages are falling away, maybe it would be a good information project. The dictionary would have, simply, all the words that people now use (Esperanto. Korean. Latin. French. Ancient Greek. Hindi. Sumerian. Klingon. Chinese, Hochdeutsch, Basque etc. etc.), or have used, or know about, arranged alphabetically, with indications of what they mean. If nothing else, it would be a really cool publishing project--picture the Oxford English Dictionary expanded to include everybody's words. Big book. May already exist in some form as translation software. (Later: The questions about alphabetization imply a standardized format. Is there such a thing in linguistic circles? I imagined anglicized versions of the entries. That Ghoti won't hunt, I guess...)