Sharpness of vision; the visual ability to resolve fine detail (usually measured by a Snellen chart)
Spanish
viveza 1
One had the alertness and vigor which bespeaks the dweller in towns.
2
Players using them would have higher levels of concentration, alertness, and energy.
3
I moved my mind into that special area of alertness and calling.
4
Heighten your alertness, but do not let addiction gain control of you.
5
A distinct sense of alertness began to take hold of the settlement.
1
He sat like a man who is perpetually on the qui vive.
2
A species of horrible curiosity kept every one on the qui vive.
3
We were on the qui vive till daylight, and prepared for the combat.
4
His instinct for the truth is always on the qui vive.-C.
5
You will readily understand that all my faculties were now on the qui vive.