Is there a dictionary of terms?

Is there a place to look for all the terminology used? I have tried to find out what a sock puppet is, but there are over 200 posts that use the word without necessarily defining it. That is the one I can think of off the top of my head, but it would really simplify matters if there were a specific place to look, instead of just interrupting a thread with, “What is that? What does that mean?”

Can anyone help?

Here’s the dictionary thread:
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