20 rounds! Nice!
Very cool you caught all of those design decisions. Locking out definitely does give fast-movers an advantage, which could be annoying for more methodical folks. Asynchronous/mobile would solve that. For local multiplayer, I like the added pressure/drama.
Re: one use per game. Yeah, I often found myself always trying the same word over and over, which didn't seem all that interesting.
Also interesting about getting the same prompts. I'll look at how I choose. I bet I limited to a certain extent since this was primarily designed for exhibitions. Maybe I'll open it up a bit when I finish fixing up the keyboard bugs.
The data set used to be paid for commercial use. Great to see it's now free. I'd love to see what you make with it. If you end up using it, let me know!