The two-letter word is one of 300 new additions to the latest version of the Official Scrabble Players Dictionary, which Merriam-Webster released on Monday. But of all those words, it's the inclusion of "OK" that has some Scrabble players divided. Not all Scrabble players are OK with OK, however, especially at the game's highest levels. Regardless of its merits as a word, there's no question OK will change the way Scrabble is played from a strategic standpoint. After all, any expert player will tell you that two-letter words are the most important words in the entire game.

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