easy
The eagle's visual acuity helps it spot small animals from far away.
What does Acuity mean?
Acuity means sharpness or clear ability to notice, sense, or understand something.
Dictionary definition
Sharpness, keenness, or clear ability in sight, hearing, thought, or understanding.
Example sentences
Acuity in a sentence
medium
Her mental acuity helped her notice the hidden pattern in the puzzle.
hard
The doctor tested the patient's hearing acuity to see how clearly different sounds could be detected.
Writing practice
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Quick practice
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Practice the meaning of Acuity
Answer three quick questions about its meaning and related words.
Question 1 of 3
Practice 1
What does acuity mean?
Acuity means sharpness or clarity, especially in the senses or the mind.
Practice 2
Which word is closest in meaning to acuity?
Keenness is close in meaning because acuity means a sharp or clear ability to notice, sense, or understand.
Practice 3
Which word is a useful contrast for acuity?
Dullness contrasts with acuity because acuity means sharpness or clear ability.
Practice complete
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Acuity
Voice settings
Sounds like
uh · kyoo · uh · tee · strongest beat: kyoo
Tap each sound part, then blend the whole word together.
Learn
WordAcuity.
Partnoun.
MeaningAcuity means sharpness or clear ability to notice, sense, or understand something.
ExampleExample: The eagle's visual acuity helps it spot small animals from far away.
Word breakdown
4 syllables. Say each part, then blend the word.
- Syllables
- uh · kyoo · uh · tee
- Strongest beat
- kyoo
- Ending
- tee
- Tip
- Put a little extra energy on kyoo.
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Synonyms
Words like Acuity
sharpnessUse for clear sight, hearing, thought, or awareness.
keennessUse when a sense or mind is especially sharp and alert.
clarityUse when something is clear, easy to notice, or easy to understand.
Antonyms
Opposite words
dullnessUse when a sense, mind, or understanding is not sharp.
confusionUse when understanding is unclear.
blurrinessUse when sight or perception is not clear.
Synonym practice
Want to practice acuity synonyms in context? Try a Synonym Search question like "The owl's acuity helped it hear tiny sounds," then compare close word choices. Practice acuity synonyms.
Word family
Acuity word family
Base word
acute
noun
acuity
Sharpness or clear ability in a sense or the mind.
adverb
acutely
In a sharp, intense, or clear way.
Related words
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Student support
Understand Acuity
Hint for students
Acuity means sharpness or clear ability, especially in seeing, hearing, noticing, or understanding.
Common mix-up
Do not use acuity for any kind of intelligence. Acuity focuses on sharpness, clarity, or quick noticing in a sense or the mind.
Try it in class or at home
Write one sentence that shows acuity without using the word acuity. Then underline the clue words that show sharp sight, hearing, thought, or understanding. Example: The bird spotted a tiny mouse moving in the grass from high above the field. Clue words: spotted, tiny mouse, high above, field Now try your own sentence. Ask: Does my sentence show sharp noticing, sensing, or understanding?
Teacher prompt
Ask students to explain this model sentence: "Her mental acuity helped her notice the hidden pattern in the puzzle." Why does acuity fit better than confusion?
Learning activities
Practice Acuity and explore more word games
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