Longest English Words
1 / 15How well do you know the longest words in the English language? Test your knowledge of these impressive tongue-twisting terms!
15 quick questionsNo sign-upFree to playTap an answer below to begin ↓
What is the longest word in most standard English dictionaries?
About Longest English Words
How well do you know the longest words in the English language? Test your knowledge of these impressive tongue-twisting terms! Longest English Words packs 15 multiple-choice questions aimed at mixed difficulty into a relaxed session of roughly 7 minutes — no sign-up, no timer pressure. An explanation appears after every answer, and finishing once a day keeps your streak alive.
A few sample questions
1. What is the longest word in most standard English dictionaries?
Answer: Pneumonoultramicroscopicsilicovolcanoconiosis
2. What does 'pneumonoultramicroscopicsilicovolcanoconiosis' refer to?
Answer: A lung disease caused by inhaling fine silica dust
3. How many letters are in the word 'antidisestablishmentarianism'?
Answer: 28
4. What does 'floccinaucinihilipilification' mean?
Answer: The estimation of something as worthless
5. Which of these is the longest commonly used English word (not coined for length)?
Answer: Electroencephalographically
Frequently asked questions
Is Longest English Words free to play?
Yes. The entire SeniorBrainGames catalog — including Longest English Words — is free, with no sign-up required, no time limits, and no ads on top of the game. It also works offline once the page has loaded once.
How long does Longest English Words take?
Most players finish Longest English Words in about 7 minutes. You can pause between questions, replay it as often as you like, and there is no penalty for taking your time — answers are explained after you submit them.
What's a good follow-up after Longest English Words?
If you enjoyed this word games quiz, try the Daily Challenge — five rotating questions, refreshed every 24 hours, that count toward your streak. You can also use the Surprise Me button on the homepage to land on a different game type for variety.
Can I print Longest English Words?
Yes — use the Print button at the top of the page for a clean question sheet, or "Print with Answers" to make an answer key. Printed sheets work well for group play at home, in a classroom, or at a senior center.
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