Vocabulary Quiz: O Words
Test your knowledge of 10 words starting with O
Obscure
To keep from being seen; conceal.
Which word is most similar in meaning?
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✓ Correct Answer: Hide
Obsolete
No longer produced or used; out of date.
Which word is most similar in meaning?
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✓ Correct Answer: Outdated
Obstreperous
Noisy and difficult to control.
Which word is most similar in meaning?
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✓ Correct Answer: Unruly
Optimistic
Hopeful and confident about the future.
Which word is most similar in meaning?
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✓ Correct Answer: Positive
Opulent
Ostentatiously rich and luxurious or lavish.
Which word is most similar in meaning?
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✓ Correct Answer: Luxurious
Ordinary
With no special or distinctive features; normal.
Which word is most similar in meaning?
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✓ Correct Answer: Normal
Oscillate
To move or swing back and forth at a regular speed; to waver between extremes of opinion, action, or quality.
Which word is most similar in meaning?
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✓ Correct Answer: Swing
Outmoded
Old-fashioned.
Which word is most similar in meaning?
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✓ Correct Answer: Outdated
Outstrip
To move faster than and overtake (someone else).
Which word is most similar in meaning?
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✓ Correct Answer: Overtake
Overshadow
To appear much more prominent or important than.
Which word is most similar in meaning?
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✓ Correct Answer: Eclipse
About This Quiz
This quiz covers advanced-level SAT vocabulary words that start with the letter O. Mastering these words will help you succeed on the SAT Reading and Writing sections. Each question tests your understanding of word meanings through synonym and antonym identification, common formats on the Digital SAT. Practice regularly to build your vocabulary and improve your score.