Synonyms: sharpness, acuity, acuteness, keenness
Definition: a quick and penetrating intelligence
Usage: he argued with great acuteness; I admired the keenness of his mind
Similar words: intelligence
Definition: the ability to comprehend; to understand and profit from experience
Synonyms: acuity, sharp-sightedness, visual acuity
Definition: sharpness of vision; the visual ability to resolve fine detail (usually measured by a Snellen chart)
Similar words: sight, vision, visual modality, visual sense
Definition: the ability to see; the visual faculty