Scrabble Dictionaries, Languages & the Strangest Legal Words

One of the most common arguments in casual Scrabble is whether a word is "real." In tournament play, the answer depends entirely on which dictionary you're using — and the answer might surprise you. A word that's perfectly legal in London could be challenged off the board in New York. Here's everything you need to know about the dictionaries, the languages, and the gloriously strange words that competitive players use every day.

Two English Dictionaries, Two Different Games

English-language Scrabble uses two official word lists, and which one applies depends on where you're playing:

CSW (formerly known as SOWPODS) is significantly larger because it's a merged list. The name "SOWPODS" is itself an anagram of two acronyms: OSW (Official Scrabble Words, the British list) and OSPD (Official Scrabble Players Dictionary, the American list). When these two lists were combined for international play, the merged result contained about 88,000 more words than the American list alone.

The World Scrabble Championship uses CSW. This means international tournament players must study a much larger word list than North American players. It also means a word that wins you a world title might get challenged off the board at a local US tournament.

Words That Look Fake but Are Perfectly Legal

Every casual Scrabble player has experienced the indignation of an opponent playing something that doesn't look like a word. In tournament play, these "strange" words are everyday ammunition:

The two-letter words are particularly crucial. Tournament players memorise every legal two-letter word because they're essential for fitting plays into tight spaces and creating multiple words simultaneously (called "parallel plays"). There are about 127 valid two-letter words in CSW and roughly 107 in TWL.

Words Without Traditional Vowels

English normally requires vowels (A, E, I, O, U) to form words, but several valid Scrabble words use only Y as their vowel — or have no traditional vowel at all:

• ▶ RHYTHMS — perhaps the most famous vowel-less word (7 letters, no A/E/I/O/U)
• ▶ SYZYGY — alignment of celestial bodies (uses only Y as vowel)
• ▶ MYTHS — 5 letters, Y-only vowel
• ▶ CRYPT — another consonant-heavy word playable with a vowel-starved rack
• ▶ LYMPH, GLYPH, PSYCH — short, high-utility words when vowels are scarce

Knowing these words is a survival skill for moments when you draw five consonants and only Y for a vowel. Rather than exchanging tiles (losing your turn), you can still play and score.

Scrabble in 30+ Languages

Scrabble isn't just an English game. Official versions exist in over 30 languages, each with its own tile distribution, point values, and dictionary. The game has been adapted for:

• ▶ French — extra tiles for accented letters, different frequency distribution
• ▶ German — includes Ä, Ö, Ü tiles and different scoring
• ▶ Spanish — includes Ñ, LL, RR, and CH as single tiles in older versions
• ▶ Arabic — right-to-left layout, completely different letter system
• ▶ Hebrew — reads right to left, no vowel tiles (vowels optional in Hebrew writing)
• ▶ Dutch, Italian, Portuguese, Polish, Russian — each with custom adaptations

Each language version requires its own letter-frequency analysis — the same methodology Butts used for English in the 1930s, applied to the specific character distributions of each language. A language with many short common words (like Dutch) plays very differently from one with long compound words (like German).

Winning French Scrabble Without Speaking French

The most extraordinary cross-language Scrabble story belongs to Nigel Richards, who won the Francophone World Scrabble Championship in 2015 without speaking a word of French. He memorised the entire French Scrabble dictionary — roughly 386,000 words — in nine weeks.

After winning, he needed a translator to thank the audience. The achievement illustrates a profound truth about competitive Scrabble: at the highest level, it's not really a language game. It's a pattern-matching and positional strategy game that happens to use letter tiles. Richards didn't need to know what the French words meant — he only needed to know which combinations of letters formed valid entries in the official dictionary.

This feat is roughly equivalent to a non-chess-player memorising every opening variation without understanding the positional ideas behind them — except Richards actually won against native speakers who had studied the game their entire lives.

Dictionary Updates and Controversies

Scrabble dictionaries aren't static. They're updated periodically, with new words added and occasionally old ones removed. Recent editions have added modern terms like:

• ▶ EMOJI — added to CSW, reflecting modern usage
• ▶ TWERK — accepted as a valid entry
• ▶ EW — a two-letter exclamation recently made legal

Controversies arise when words are removed — usually slurs or terms deemed offensive. In 2020, both TWL and CSW removed several hundred words considered racially or otherwise offensive. This sparked debate in the competitive community: some players argued that removing valid English words from a word game was censorship, while others supported the changes as reflecting modern standards.

Regardless of where one stands on these debates, the practical effect is clear: competitive players must stay current with dictionary updates. A word that was legal last year might not be this year, and new additions create fresh strategic opportunities.

The Two-Letter Word Arsenal

If you only memorise one thing to improve your Scrabble game, make it the two-letter words. There are roughly 127 valid two-letter words in CSW, and they unlock an entirely different level of play. With two-letter words, you can:

• ▶ Play parallel to existing words, scoring for multiple new words simultaneously
• ▶ Fit plays into tight board positions that would otherwise be unplayable
• ▶ Dump difficult tiles (Q, Z, X, J) quickly and cheaply
• ▶ Create "hooks" — extending existing words by one letter to form new valid words

The most useful two-letter words for high-value tile placement include QI (Q without U), ZA and ZO (Z dumps), XI and XU (X plays), and JO (J disposal). Learning even just these opens up dozens of board positions that were previously dead ends.