Nice start!

I dare you to put a definition for "commodity". ;-)

I posted a few quick definitions when I first saw this thread. I was thinking about adding it but I didn't get around to it. It just needs to clearly and neutrally express both definitions and perhaps mention that the primary definition has been hotly debated on the forum.

Yeah, he was joking, but I think it's a good idea and can be done non-controversially. People have to go to a bid/ask currency exchange to buy or sell bitcoins over the Internet. General market trading terms are very related.

I think the person who created the page just posted some quick terms without defining them. It's a perfectly valid term, although I would personally change it to Chain Branch. It's not a very complex term, but I'm having a hard time thinking of how to succinctly define it off the top of my head. I don't have time to work on it at the moment, but here is a sentence that I wrote while I was trying to think of how to lead in to defining it. I hadn't gotten to the chain branch part of the definition yet. This definition is somewhat descriptive of the term Proof-of-Work, which is another term that should be added. There are plenty more definitions which haven't been included yet. I'll add some more at some point when I've got some time and if I don't forget.
Edit: It just occurred to me that the Bitcoin difficulty increases at much smaller increments than x2. Bitcoin doesn't attempt to only get consecutive zeros, but tries to get the hash below a certain number when the hash is expressed as a number.

You're right!  I did. ^_^

Bitcoin vocabulary has created a new world.

Bitcoin vocabulary:

* The terms can be confusing used in the digital currency.
* I think this will help you get start new bitcoin adventure.
* Cryptocurrency network control by a singe minersor group miners.