1. unusually sharp visual powers; keen ability to watch or observe.
2. a person who has sharp vision or who maintains a keen watchfulness.
3. alert watchfulness.
[ 1595-1605 ]
1. unusually sharp visual powers; keen ability to watch or observe.
2. a person who has sharp vision or who maintains a keen watchfulness.
3. alert watchfulness.
[ 1595-1605 ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012