Playing word games makes new vocabulary stick because you actively recall words...

https://spellingbee.ninja/trends/why-playing-with-words-can-be-one-of-the-best-ways-to-build-vocabulary/

Playing word games makes new vocabulary stick because you actively recall words in fun, meaningful ways. For example, using "respawn" in a game helps you remember it better by seeing how it fits in context and getting quick feedback when you use it right