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Words and numbers

Longest Word

Ten letters, forty-five seconds, one word: the longest you can find.

Pick vowels and consonants to build a draw of ten letters, then find the longest word you can in 45 seconds. Round after round, take on the AI.

Players
1 player
Length
8 min
  • Against the AI
  • Online with friends
Play Longest Word

15 days of full access, no account · No download

Longest Word preview

How to play

Goal

Each round, build the longest word you can from the ten letters of the draw, using each letter only once.

How it works

  • Choose "Vowel" or "Consonant" in turn until you have ten letters (at least two vowels and two consonants), or let the draw happen automatically.
  • You then have 45 seconds: tap the letters (or type them) to form your word, then confirm with Enter. To take a letter back, tap it in your word (or use Backspace).
  • Your word must be in the dictionary (plurals and verb forms are allowed). The AI plays its own word at the same time.

Points

  • The longest valid word scores as many points as it has letters; on a tie, both score.
  • A ten-letter word is worth double.
  • After each round, the best possible word is revealed.
Tip: think of suffixes (-ING, -ED, -ER, -EST, -TION) and prefixes (RE-, UN-, DIS-) that make a word longer.

Online

From two to four players, each on their own device: everyone gets the same ten letters (the draw is automatic) and searches at the same time. Words are revealed together once everyone has submitted, and every device judges them with the dictionary of the host’s language, so the result is the same everywhere. The longest valid word scores; on a tie, those players all score.

About the AI

The dictionary is indexed by sorted letters: for each draw, the solver looks at the 1,024 subsets of letters and instantly finds every word that can be made. At Master level, the AI always plays the longest word. At lower levels, it sticks to shorter everyday words and sometimes settles for a shorter one.

AI levels

  1. BeginnerThe AI plays short, very common words.
  2. AmateurThe AI finds everyday words of six letters at most.
  3. IntermediateThe AI finds good everyday words, up to seven letters.
  4. ExpertThe AI draws on the whole dictionary, without always aiming for the longest.
  5. MasterThe AI finds the longest possible word every round: almost unbeatable.

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