I am a tournament Scrabble player, and people often ask me how they can improve their Scrabble skills. I always tell them the single easiest way to boost your score: memorize the two-letter words.

Any Scrabble expert will tell you that learning the two-letter words is a surefire way to increase your average score by 50 points a game. We compiled a list of the 105 valid two-letter words ...

Among competitive 'Scrabble' players, two-letter words can be a crafty means of boosting your score.