IT
Worth 2 points before any premium square, and the lowest-scoring of the 96 — tied with 35 others.
IT extends into 15 three-letter words, which is the 16th most extendable of 96 — tied with 2 others. 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
- A→AIT
- B→BIT
- D→DIT
- F→FIT
- G→GIT
- H→HIT
- K→KIT
- L→LIT
- N→NIT
- P→PIT
- S→SIT
- T→TIT
- W→WIT
- Z→ZIT
- S→ITS
Not all of them are equally reachable, which a bare count of 15 hides. IT hooks on 14 distinct letters, and the ones you are likeliest to be holding are A (49% of opening racks), N (36% of opening racks) and T (36% of opening racks). The rarest is Z, at 7%.
How often you can actually play it
Out of an opening rack, 16.33% of the time you hold the letters for IT 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
IT backwards is TI, 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.