When your opponent throws down "AA", you tell them no abbreviations, but alas... it's not. They build "ZA" on the board for 64 points, and you say it's slang, but it's in the dictionary. Next is "EF", and you let them know that spelling out letters is not allowed and ridiculous... but it's totally legit.
Two-letter words. You hate them. You challenge them. You lose. But that's just because you don't know them all yet. Just because they aren't used in your everyday vocabulary, doesn't mean they aren't words acceptable in SCRABBLE play.
Learn them. Memorize them. Use them. They are the number one reason people win. When building parallel words, they make it easy to build five or even six words at a time. When stuck with a "Z" or a "Q" in the endgame, you don't have to eat the points if there is an "A" or "I" on the board. Two-letter words help you out of sticky situations. You need to know them.
Study all of these 2-letter words from the OSPD and you won't be sorry! These are the 101 words for North American SCRABBLE play.
AA, AB, AD, AE, AG, AH, AI, AL, AM, AN, AR, AS, AT, AW, AX, AY, BA, BE, BI, BO, BY, DE, DO, ED, EF, EH, EL, EM, EN, ER, ES, ET, EX, FA, FE, GO, HA, HE, HI, HM, HO, ID, IF, IN, IS, IT, JO, KA, KI, LA, LI, LO, MA, ME, MI, MM, MO, MU, MY, NA, NE, NO, NU, OD, OE, OF, OH, OI, OM, ON, OP, OR, OS, OW, OX, OY, PA, PE, PI, QI, RE, SH, SI, SO, TA, TI, TO, UH, UM, UN, UP, US, UT, WE, WO, XI, XU, YA, YE, YO, ZA