Duolingo English Test · Guides · November 5, 2026 · 6 min read

DET Read and Select: how to spot fake English words in 5 seconds

Read and Select is the first question type in Duolingo’s 2026 Question Guide for the Duolingo English Test (DET). A single word appears on the screen, and you have 5 seconds to click Yes if it is a real English word or No if it is not. There are 15–18 words, the task is adaptive, and it counts toward your Reading subscore. It looks like a game, but it is a fast test of vocabulary size: the more English words you have seen, the easier it is to notice a word that does not exist.

How the task works

Read and Select
What you see one word at a time
What you do click Yes (real word) or No (fake word)
Time 5 seconds per word, no preparation
Number 15–18 words
Scoring right or wrong for each word
If you do not answer the word is marked wrong
Adaptive yes: words get harder or easier with your answers
Subscore Reading

The next word appears as soon as you click. You cannot go back. Duolingo’s 2026 Question Guide says simply that “the fake words look like real words”, and that is the whole challenge.

Some older practice material shows a whole grid of words at once. The 2026 test shows one word at a time, so practice that way.

How the fake words are built

Duolingo does not publish how it creates the fake words, but they follow the sound and spelling rules of English, so you cannot reject them for looking “foreign”. From practice, they fall into a few families:

1. Real-looking roots that do not exist. Short words with ordinary English letter patterns: snorth, glavish, dreptic. Nothing is wrong with the spelling, and you could pronounce them. The only question is whether you have ever seen them.

2. A real word with one or two letters changed. conflabulate looks very close to the real confabulate. The fake is built to trigger the feeling “I have seen something like this”. Close is not the same.

3. Real parts joined in a way English does not use. A real prefix or suffix on a real root that does not take it: unwisdomly, prepostulate. Each piece is familiar, which is why they feel real.

The opposite trap also exists: rare real words that look strange. Words like quell, wry, plinth, quaff or nimble are real but uncommon, and a student who clicks No on everything unfamiliar will lose them. As the test adapts upward, more of the real words are of this kind.

A practice list

Cover the answers. Give yourself 5 seconds per word.

  1. thwart
  2. snorth
  3. wistful
  4. conflabulate
  5. brisk
  6. dreptic
  7. ostensibly
  8. unwisdomly
  9. plinth
  10. glavish
  11. meager
  12. prepostulate

Answers

# Word Real? Why
1 thwart yes “to stop someone’s plans”
2 snorth no an English-looking pattern, but no such word
3 wistful yes “sadly thinking about something you miss”
4 conflabulate no a changed version of confabulate
5 brisk yes “quick and energetic”
6 dreptic no sounds technical, does not exist
7 ostensibly yes “apparently, as it seems”
8 unwisdomly no un- + wisdom + -ly is not a word; the real adverb is unwisely
9 plinth yes the base of a column or statue
10 glavish no the -ish ending makes it look like an adjective
11 meager yes “small in amount”; also spelled meagre in British English
12 prepostulate no real prefix and real-sounding root, but not a word

If you got 10 or more right in time, your recognition is good. If the real words caused most of your mistakes, you are being too cautious; if the fakes did, you are being too generous.

A method that fits in 5 seconds

You do not have time to think in steps, so practice until this becomes automatic:

  1. Do I know what it means? If yes, click Yes at once.
  2. Have I seen it in reading, even without knowing the meaning? Say it silently in your head. If it feels familiar as a whole, not just in pieces, click Yes.
  3. Is it a familiar word with something slightly off? One letter changed, an odd prefix, a suffix that does not fit: click No.
  4. Never seen it at all? Duolingo’s own tip is to click No if you have not seen the word before. With 5 seconds, a decision is always better than a timeout.

Never let the timer run out. A timeout is marked wrong, so an answer, even a guess, is always better than nothing.

Common mistakes

How to build the vocabulary that this task measures

Read and Select rewards how many written words you have seen. A few weeks of the right reading moves it more than any trick:

The same vocabulary helps in Fill in the Blanks and Read and Complete, where you also need to recognize a word from its first half. For where Read and Select sits among the other 12 question types, see the 2026 DET format.

Practice Read and Select in the Nomto room

The Read and Select drill in the Nomto DET room shows one word at a time with a 5-second timer, mixes real words of rising difficulty with fakes built the same ways as above, and explains each answer: the meaning of the real words and why the fakes do not exist. A free account includes 10 reading and listening items.

Common questions

How many words are in Read and Select? 15 to 18, one at a time.

What happens if I do not click in 5 seconds? The word is marked wrong and the next one appears.

Are the fake words always nonsense? No. Many look and sound like real words. They are built to follow English spelling patterns.

Does British vs American spelling matter? Both spellings are real English words.

Does Read and Select affect my overall score? Yes, through the Reading subscore, which is one quarter of the overall score.

Duolingo English Test is a trademark of Duolingo, Inc. Nomto is independent and is not affiliated with or endorsed by Duolingo.