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Duolingo English Test Vocabulary & Idioms Questions
Practise vocabulary & idioms (english) for the Duolingo English Test: 10 multiple-choice questions, each with the correct answer and a worked explanation. Click an option to check it, or “New questions” for another set.
Vocabulary & Idioms practice
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Q1.Choose the synonym of ABUNDANT.
Show answer & explanation
Answer: D — Plentiful
Abundant means existing in large quantities — plentiful.
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Q2.Choose the correctly spelt word.
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Answer: D — Accommodation
Accommodation has double c and double m.
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Q3.Choose the antonym of ZENITH.
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Answer: A — Nadir
Zenith = highest point; nadir = lowest point.
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Q4.Choose the synonym of DILIGENT.
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Answer: C — Hard-working
Diligent means showing care and effort in work.
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Q5.Choose the antonym of OPTIMISTIC.
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Answer: C — Pessimistic
Optimistic = expecting good outcomes; pessimistic = expecting the worst.
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Q6.Choose the antonym of AMELIORATE.
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Answer: B — Worsen
Ameliorate = make better; the opposite is worsen.
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Q7.Choose the synonym of ARDUOUS.
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Answer: B — Difficult
Arduous means involving great effort — difficult.
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Q8.Choose the synonym of PRUDENT.
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Answer: A — Wise
Prudent means acting with care and good judgement.
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Q9.Meaning of the idiom “once in a blue moon”.
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Answer: D — Very rarely
It means very rarely.
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Q10.Choose the synonym of RESILIENT.
Show answer & explanation
Answer: D — Tough
Resilient means able to recover quickly from difficulty.
How to approach vocabulary & idioms questions
Learn words in synonym/antonym pairs and by roots (bene = good, mal = bad, chron = time). For idioms, think of the figurative meaning, not the literal one.
About Duolingo English Test
Duolingo English Test — conducted by Duolingo. An online, adaptive English proficiency test taken from home.
Original practice questions written for this site in the style and difficulty of each exam’s syllabus. They are not past papers and the site is not affiliated with any exam body. Exam patterns, marking schemes and syllabi change — always check the latest official notification.
Duolingo English Test practice topics
| Topic | Section | Question source |
|---|---|---|
| English Grammar | English | Question bank |
| Vocabulary & Idioms | English | Question bank |