Can Scrabble improve vocabulary?
Technically speaking, yes, though short words are prevalent due to how the game is designed. You might not use these words elsewhere as these are necessary for scoring points in the late game.
Therefore, I guess it depends on why you want to increase your vocabulary and what you hope to achieve. If you’d like to concentrate on improving vocabulary for conversation and writing, I’d recommend a house rule that limits words to 4 letters and larger. Know that it’ll significantly change the game and in a way that some people will dislike.
But as far as I can say, it’s the most straightforward manner to handle the game’s biggest flaw and the one thing that makes it odd among word games, which is not especially good for anything apart from being better at Scrabble.
In addition, remember that though competitive, Scrabble will improve not only your vocabulary, but also your memory, analytical skills, and strategic powers! Scrabble, as a word game commonly played between 2-4 people, is best known as a family game that one plays at the weekends or on a rainy day.