One reason I'm pondering these ideas is because I've seen advice against using jargon suggested in many places. Generally, if people don't know what you're talking about, you're going to have a hard time communicating with them.
The Internet, Dummies books, and other places exist to look these things up. We also have a society that seems to want everything two days ago.
criticism towards 3e taught me the DM should be called Blizzard.
Lastly, and Laneffan is going to love this, if we were able to make everyboduy use common words so that everybody could follow along, we'd be living in 1984 with GoodSpeak.
Anything "Master". This implies that the person running the game is better than you.