44,708 words in ENABLE, the public-domain word list Wordton searches, can appear in a Spelling Bee puzzle: four letters or more, at most seven different letters, and no S. 14,784 of them use exactly seven different letters, which makes them possible pangrams.
Every word below could appear in some Spelling Bee puzzle. Which ones appear in today's depends on the seven letters, and the solver will tell you that in a second; this page is for learning the shape of the game rather than finishing one puzzle.
What makes a word eligible
Three rules decide it, and only three. A word needs at least 4 letters. It can use at most 7 different letters, because a puzzle only ever offers seven. And it cannot contain an S, because the New York Times never puts one in a puzzle, which quietly removes most plurals from the game and is the single most useful thing to know about the format.
Notice what is not on that list: rarity, difficulty, or how the word looks. A repeated letter costs nothing, so TATTOO and BOOKKEEPER-style shapes stay eligible however lopsided they seem. That is why long words are often easier to find than they look: they are usually long because a few letters repeat, not because they use many.
The patterns worth learning
Words heavy in common letters
A, E, I, N, O, R and T do most of the work. A puzzle built from those gives hundreds of words; one built around J, K, V or X gives a fraction as many, and the game feels harder for a reason that has nothing to do with you.
Words that repeat a letter
Repetition is free, so it is the cheapest way to reach length. Look for doubled vowels and doubled L, N and T before you look for exotic letters.
The four-letter workhorses
Most of any day's list is four and five letters, and they are the words people leave on the table. Sweep the short ones with the centre letter first; the long ones tend to appear while you do it.
Pangrams
A pangram uses all seven letters in one word. Every puzzle has at least one, and finding it early changes the shape of the whole game. In our dictionary 14,784 words have exactly seven distinct letters and no S, which is the pool every puzzle is built from.
How to spot one: count the letters you have not used yet, then look for a word that needs all of them at once. Pangrams are usually seven to nine letters, and they lean on the same shapes over and over. Prefixes and suffixes carrying an awkward letter are the giveaway: OUT, OVER, UNDER and UP at the front, and ING, ILY, ATE, IFY and MENT at the back, are how a word reaches seven distinct letters without becoming obscure. If the puzzle contains a G and a Y you should be trying words ending ING and ILY before anything else.
The other reliable trick is to start from the rarest letter. If the puzzle has a K or a V, almost every pangram will be built around it, so listing the words you know containing that letter narrows the field faster than working through the common ones.
