T9 is the predictive text technology used by mobile phone vendors for SMS input. If you tap in, say 269, T9 will guess that you mean „BOY,“ since 2 codes fo ABC, 6 for MNO and 9 for WXYZ. But what about number-patterns that can stand for multiple words? T9 presents a list of possible words, and invites you to pick the correct one. Sometimes, these lists can be quite long: here, a perl hacker has written a script to uncover common English words that share the same T9 numeric code:
729 : PAW, PAY, PAZ, RAW, RAY, SAW, SAX, SAY
76737 : PORES, POSER, POSES, ROPER, ROPES, ROSES, SORER, SORES
46637 : GONER, GOODS, GOOFS, HOMER, HOMES, HONER, HONES, HOODS, HOOFS, INNER
22737 : ACRES, BARDS, BARER, BARES, BASER, BASES, CAPER, CAPES, CARDS, CARES, CASES
7283 : PATE, PAVE, RATE, RAVE, SATE, SAUD, SAVE, SCUD
2273 : ACRE, BARD, BARE, BASE, CAPE, CARD, CARE, CASE
Via: 
BoingBoing
