| NOUN | cognition | sharp-sightedness, acuity, visual acuity | sharpness of vision |
|---|---|---|---|
| attribute | sharp-sightedness, alertness, on the qui vive | lively attentiveness |
| Meaning | Sharpness of vision; the visual ability to resolve fine detail (usually measured by a Snellen chart). | |
|---|---|---|
| Synonyms | acuity, visual acuity | |
| Narrower | oxyopia | unusually acute vision |
| twenty-twenty, 20/20 | Normal visual acuity, as measured by the ability to read charts at a distance of 20 feet | |
| Broader | sight, vision, visual sense, visual modality | The ability to see |
| Spanish | acuidad, agudeza, agudeza visual | |
| Catalan | agudesa visual | |
| Adjectives | sharp-sighted | having very keen vision |
| Meaning | lively attentiveness. | |
|---|---|---|
| Synonyms | alertness, on the qui vive | |
| Broader | attentiveness | The trait of being observant and paying attention |
| Spanish | diligencia, viveza | |
| Adjectives | sharp-sighted | keenly perceptive or alert |
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