Every experienced word puzzle solver has a piece of knowledge so fundamental they rarely think to mention it to beginners: the relative frequency of letters in English. This isn't trivia — it's operational intelligence that applies directly to cryptograms, crosswords, Wordle, anagrams, and virtually every other word puzzle format. Knowing which letters appear most often in English text, and in which positions, gives you a systematic advantage that compounds across every word puzzle you'll ever solve.
The Core Frequency Order
The approximate frequency ranking of letters in standard English text is as follows:
| Rank | Letter | Approx. Frequency | Notes |
|---|---|---|---|
| 1 | E | 12.7% | By far the most common; often the first substitution in cryptograms |
| 2 | T | 9.1% | Very common at word starts and ends |
| 3 | A | 8.2% | Extremely common vowel |
| 4 | O | 7.5% | Common in short words: to, on, of, not |
| 5 | I | 7.0% | Essential vowel, very common in middle positions |
| 6 | N | 6.7% | Common suffix (–ing, –tion, –ness) |
| 7 | S | 6.3% | Extremely common at word ends (plurals, verbs) |
| 8 | H | 6.1% | Mostly at word starts (the, this, that, here) |
| 9 | R | 6.0% | Common in middle and end positions |
| 10 | D | 4.3% | Common at word ends (past tense –ed) |
Using Frequency in Cryptograms
A cryptogram replaces each letter with a different symbol or letter. Frequency analysis is your primary attack. The most common symbol in the cryptogram almost certainly represents E. The second and third most common are likely T and A in some order. Single-letter words are almost always A or I. Two-letter words are most likely TO, OF, IN, IS, IT, BE, or AS. Once you've made two or three confident substitutions, the surrounding letters cascade: knowing a word ends in -T-E makes the blank before T a high candidate for A (giving ATE) or N (giving NTE — likely ANTE or INTO).
Using Frequency in Crosswords
When you have a partially filled answer with blanks, frequency analysis helps you evaluate fill options quickly. A blank in the middle of a word is more likely to be E, T, A, or O than J, Q, or Z. When two crossing answers are both consistent with your known letters, prefer the completion that uses higher-frequency letters in the crossing positions — it's statistically more likely and more likely to be a real word the constructor would use.
Frequency also helps at word endings. The most common final letters in English words are E, S, T, D, and N. When you're filling the last cell of an answer and two letters both seem possible, bias toward this group. The constructor almost certainly used a word ending in one of the high-frequency terminals unless the crossing answer forces otherwise.
Using Frequency in Wordle
The best Wordle opening words are built almost entirely from the top-10 frequency list. CRANE covers C, R, A, N, E — four of the top ten. STARE covers S, T, A, R, E — five. RAISE covers R, A, I, S, E — five. This is not a coincidence. The mathematical case for high-frequency openers is that they test the letters most likely to appear in the answer, maximizing expected information per guess. Every expert Wordle guide eventually arrives at frequency analysis as its foundation.
The Practical Step: Memorize the Top Ten
You don't need to memorize all 26 letters in frequency order. Memorizing the top ten — E, T, A, O, I, N, S, H, R, D — gives you the bulk of the benefit. A helpful mnemonic used by many puzzle solvers and cryptographers is ETAOIN SHRD — the first two columns of letters on a Linotype typesetting machine, arranged by frequency. Once ETAOIN SHRD is automatic, your ability to evaluate word candidates, make substitution guesses, and choose Wordle openers improves across the board.