Playing word games makes vocabulary stick because they use active recall, which...

https://elliottsinsightfulinsight.quantlynix.com/posts/how-do-i-train-for-a-spelling-bee-without-burning-out

Playing word games makes vocabulary stick because they use active recall, which helps you remember words better than just reading. For example, when you guess the word “respawn” in a game, you’re recalling it from memory and seeing it in context