The Last Letter Problem: What Word Endings Give Away

Read the dictionary from the back for an evening — I have, it's a lifestyle — and you notice something the front never tells you: English is wildly picky about how words are allowed to end. Our collection holds 168,551 words, and more than a third of them finish with a single letter: S. Add E and D and you have covered over half the language. The last letter of a word is not trivia. It is the grammar showing through, and in a word game it is the closest thing to a cheat code that is still legal.

Three letters carry the language

Here is the whole skew, straight from our lists. Each chip is a live list — tap it and every word is there:

The reason is machinery, not chance. Nearly every plural takes -s. Nearly every regular past tense takes -ed. Every gerund ends in -ing, which is why G punches so far above its weight, and the -ly that builds adverbs hands Y its enormous share. Wiktionary keeps a full appendix of English suffixes if you want to see the whole engine room, and Merriam-Webster will confirm any individual part.

A word’s ending is rarely an accident. It is the grammar showing through.

The rare finales

Now the other end of the curve, which is where my heart lives. Exactly three words in the collection end in Q — the sedative shorthand tranq being the one you might actually play. Seven end in J. Seventeen end in V. Even Z, the loudest letter in the box, closes only 81 words — though what a list it is: buzz, waltz, blitz, quiz. Q is a special kind of difficult at both ends of a word; if that difficulty delights you the way it torments me, there is a whole discipline of playing Q without a U, and it starts with the mighty two-letter qi.

What endings win at the tile board

Scrabble players call them hooks: single letters that attach to a played word and make a new one. S is the master hook — it pluralises almost anything, which is why good players hoard it — but the money is in the strange ones. Landing the Z at the end of quiz or blitz on a premium square is one of the game’s great pleasures. Two rules before you try any of this in anger: check your word against the official adjudicators — Hasbro’s official Scrabble site for North American play, Collins Scrabble Tools everywhere else — and know your tile values cold, because a strange ender is only worth hunting when you know exactly what it pays.

And in Wordle

In Wordle, endings narrow the field faster than beginnings do. Once you hold a yellow R and E, the question is almost always “-er or not -er?” — and a whole family of answers collapses either way. The classic trap runs the other direction: the answer list avoids plurals, so burning a guess on an -s ending is usually a wasted question. We wrote a full field guide to five-letter words that builds on this idea from the other side of the word.

Sources & further reading

• Wiktionary — Appendix: English suffixes — the full catalogue of the endings machinery.
• Merriam-Webster — the reference dictionary we check ourselves against.
• The New York Times — Wordle — the official daily puzzle. For a second opinion on openers, this breakdown of the best starting words reaches the same podium by a different road.
• Hasbro — official Scrabble site — rules and the North American word authority.
• Collins — Scrabble Tools — the official international word checker.