This is great!
I really like the way the difficulty scales, more complex words, more enemies, enemies that take multiple words to defeat, all of it felt really smooth.
On wave 10, I think the enemy quantity caused all the words to stack up and float detached from the enemies, so I couldn't really tell what went where, but the passive abilities were so OP at that point I was still able to clear without issue. I had the pushback and chain shot passives when this happened.
Awesome work overall!