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1. Having keen eyesight.
2. Keenly perceptive or alert.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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|Noun||1.||sharp-sightedness - sharpness of vision; the visual ability to resolve fine detail (usually measured by a Snellen chart)|
20/20, twenty-twenty - normal visual acuity, as measured by the ability to read charts at a distance of 20 feet
oxyopia - unusually acute vision
|2.||sharp-sightedness - lively attentiveness |
attentiveness - the trait of being observant and paying attention
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