Hypernym

noun

English

the ability to see; the visual faculty

acuity 1

noundomain: thinking

Princeton WordNet [ver.3.1]

English

English

Definition

sharpness of vision; the visual ability to resolve fine detail (usually measured by a Snellen chart)

Synonyms

visual acuity 1
sharpness of vision; the visual ability to resolve fine detail (usually measured by a Snellen chart)
sharp-sightedness 1
sharpness of vision; the visual ability to resolve fine detail (usually measured by a Snellen chart)

Hyponym

twenty-twenty 1

noun

English

normal visual acuity, as measured by the ability to read charts at a distance of 20 feet

noun

English

unusually acute vision

FENG