AT
Worth 2 points before any premium square, and the lowest-scoring of the 96 — tied with 35 others.
AT extends into 19 three-letter words, which is the 2nd most extendable of 96 — tied with 1 other. That is the number worth memorising: a two-letter word is a place to put tiles, but a well-hooked one is a place to put them where the board stays open.
Every hook
- B→BAT
- C→CAT
- E→EAT
- F→FAT
- G→GAT
- H→HAT
- K→KAT
- L→LAT
- M→MAT
- O→OAT
- P→PAT
- Q→QAT
- R→RAT
- S→SAT
- T→TAT
- V→VAT
- W→WAT
- E→ATE
- T→ATT
Not all of them are equally reachable, which a bare count of 19 hides. AT hooks on 17 distinct letters, and the ones you are likeliest to be holding are E (60% of opening racks), O (45% of opening racks) and R (36% of opening racks). The rarest is Q, at 7%.
How often you can actually play it
Out of an opening rack, 16.33% of the time you hold the letters for AT outright, the 9th likeliest of 96 — tied with 7 others. Counting a blank as whichever letter is missing lifts that to 23.45%, though spending one of the two blanks on a two-letter word is rarely the play. Exact hypergeometrics over the 100-tile bag, not a simulation.
It reverses
AT backwards is TA, which is also good. That is how most of this list is actually learned — 46 of the 96 come in reversible pairs, so knowing one gets you the other free.