Two-Letter Scrabble Words: The Highest-Value List You Can Memorize
A hundred-odd tiny words separate casual Scrabble players from dangerous ones. Here is why the two-letter list matters and how to actually learn it.
Ask a tournament Scrabble player for the single best study investment in the game and you’ll get the same answer every time: learn the two-letter words. All of them.
Why such small words matter so much
Two-letter words are not about scoring two-letter points. They’re about hooks and parallel plays: laying a word alongside an existing one so that every adjacent pair of tiles also forms a word. One seven-tile bingo placed parallel to a row can score from five or six little words at once, but only if you know that ZA, QI, and XU are legal.
They’re also the escape hatch for the worst racks in the game:
- Q with no U? QI (the life force in Chinese philosophy) is the most played Q-word in modern Scrabble. More escape routes live on the Q-without-U list.
- Stuck with a Z? ZA (slang for pizza) turns a 10-point liability into a quick 30+ on a premium square.
- All vowels? AA, AE, AI, OE and OI exist precisely for this misery.
How big is the list?
It depends on your dictionary. The North American tournament list (TWL) recognizes about a hundred two-letter words; the international list (CSW) adds a couple dozen more. The complete, current list, sorted by how common each word is in everyday English, lives on our two-letter words page.
A taste of the ones that surprise new players:
- AA: rough, crumbly lava (Hawaiian)
- XI / XU: a Greek letter and a Vietnamese coin
- JO: a Scottish sweetheart
- KA: the spirit-double in Egyptian mythology
- MM / HM: yes, the hums are legal
How to actually memorize them
Brute-force flashcards work, but two structures make it faster:
- Group by power tile. Learn the J, Q, X, Z set first (JO, QI, XI, XU, ZA, and friends); they’re the ones that rescue bad racks and hit triple-letter squares hardest.
- Learn by vowel skeleton. Run the vowel pairs as a chant: AA-AE-AI-AY, OE-OI-OY, and so on. The gaps (no II, no UU in TWL) stand out once you hear the rhythm.
Then play them. Knowledge that isn’t used in a real parallel play evaporates; ten games of consciously hunting for two-letter hooks will cement the list better than a month of flashcards.
One warning about house games
If you play Words With Friends or a house-rules Scrabble with a different dictionary, check before you challenge; the lists genuinely differ between TWL, CSW and the WWF dictionary. (Our dictionary comparison guide covers exactly where they disagree.) The finder on the home page lets you switch dictionaries with one tap, so you can settle arguments at the table in seconds.