A list of all 101 acceptable two letter words from Scrabble's Official Tournament and Club Word List (TWL). All "S" words have been noted. If you hope to win at the highest tiers of professional Scrabble, then you need to know these two letter words. Not only for yourself, mind you, but to be certain your opponent is using legal words. This list is current as of time of publication. As many Scrabble players know, the list of legal words evolves over time. In 2005 alone, the Official Scrabble Players Dictionary added 4000 new words to the list, 5 of which were two letter words. With this list at your disposal, take the time to memorize them and you'll be at the top of your game in no time.