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

https://fair-wiki.win/index.php/Is_Spelling_Bee_Ninja_Good_for_Vocabulary_Practice%3F

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