Without a common source on the meaning of words, how do words have meanings at all? You can argue for a different source - and I have noticed that you have not yet done so ...
Actually, in fact, I did. I was very explicit. You just don't understand language, so you missed it. But because I am so generous, here it is again: common usage. That determines the meaning of all words. We can be prescriptive in a given context -- for example, "organic" has a specific legal definition when applied to food for sale -- but generally, we simply have to go with how words are commonly used. We use dictionaries to discover common usage if we don't know it, but not to prescribe it.
the dictionary is a generally agreed-upon source for the meanings of words
Not by anyone who understands language or dictionaries, no, it's not. Even Wikipedia says you are full of shit: "Large 20th-century dictionaries such as the Oxford English Dictionary (OED) and Webster's Third are descriptive, and attempt to describe the actual use of words. Most dictionaries of English now apply the descriptive method to a word's definition ... the meanings of words in English are primarily determined by usage."
You have not yet however demonstrated your interesting alternate use of the word "democracy" to be used by anyone other than yourself
You're a liar, of course: I referenced a very important person in the history of the word: James Madison himself. And it's not an "alternative," it's the original meaning. The original use of the word "democracy" was in reference to Athens, where all citizens collectively made all legislative decisions. You're just being completely idiotic, as usual.
I see that you didn't bother to present that definition.
I presumed you were capable of taking your URL and replacing "democracy" with "socialism". My bad.
you openly despise the dictionary
You're a liar. I simply use dictionaries properly, and criticize their improper usage. Using a dictionary to settle a discussion about the proper meaning of a word is obviously stupid, if you understand that dictionaries are descriptive, and therefore prone to error. Even without understanding how dictionaries work, the fact that we have many English dictionaries with sometimes conflicting definitions should clue you in to the fact that you can't use one dictionary to settle the discussion.