Double Letter Words
Thousands of English words with double letters (BOOK, ADDRESS, COMMITTEE). Grouped by pattern with tips for Scrabble, spelling bees and word games.
Introduction
A double-letter word has two of the same letter side by side — BOOK, ADDRESS, SUCCESS. English is full of them: OO and EE are the most common vowel pairs, while double consonants like SS, LL, TT, NN and FF show up in the majority of medium-length words. Doubling is often a spelling rule (the CVC-doubling rule when adding -ED or -ING) and sometimes a Latin or Greek inheritance (COMMITTEE, ATTITUDE).
This page lists hundreds of double-letter words, from the everyday to the tournament-legal. Every word is verified against the ENABLE dictionary and cross-checked against Scrabble tournament lists.
Examples
Showing 200 of 41,209 words.
Tips
- Double-letter words are common in games — nearly one word in three has a double.
- The CVC rule doubles a final consonant before -ED/-ING when the vowel is short: STOP → STOPPED, RUN → RUNNING.
- OO is the most common vowel double: BOOK, LOOK, MOON, ROOM, POOL.
- SS, LL, TT, EE and OO account for over 70% of all doubles.
- Triple-letter combinations are extremely rare and mostly compound (BOOKKEEPER has KK, GODDESSSHIP is not standard).
- Learn the -ILL, -ELL, -OLL, -ULL endings — they anchor dozens of short high-frequency words.
Word patterns
- OO: BOOK, MOON, ROOM, ZOO, POOL, GOOD
- EE: FREE, TREE, SEE, BEE, KNEE, AGREE
- SS: MISS, BOSS, PRESS, ADDRESS, SUCCESS
- LL: BELL, BALL, CALL, FALL, WILL, PILL
- TT: LETTER, BETTER, LITTLE, ATTACK, BUTTON
- MM: SUMMER, HAMMER, COMMON, COMMENT, GRAMMAR
- NN: ANNUAL, DINNER, MANNER, TENNIS, CONNECT
Popular uses
- Scrabble — the S is only worth 1 point but doubles like SS give bingo potential.
- Wordle — knowing common double-letter patterns rules out or in candidates fast.
- Spelling bees — doubling errors (OMMISION vs OMISSION) are the top mistake.
- Teaching phonics — doubled consonants signal the short-vowel sound that precedes them.
Frequently asked questions
What word has the most double letters?
BOOKKEEPER is famous for three doubles in a row (OO, KK, EE). BOOKKEEPING has the same. In everyday text, ADDRESSEE and COMMITTEE both stack multiple doubles.
Why does English double consonants before -ED and -ING?
To preserve the short vowel sound. STOPING would read with a long O; STOPPING keeps the O short. This is called the CVC (consonant-vowel-consonant) doubling rule.
Are double-letter words worth more in Scrabble?
No — each tile scores its face value. But doubles help you use up common letters (S, T, L, E) that would otherwise clog your rack.
What's the longest common double-letter word?
Words like RESPONSIBILITY, ADDITIONALLY and MISCELLANEOUS all carry double letters and run 14–17 letters long.
Related lists
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Every 6-letter word in the ENABLE English word list, sorted alphabetically. Includes Scrabble scores, common patterns and FAQs. ENABLE-compatible; tournament validity may differ from Collins Scrabble Words.
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