Definition of "Sight" :

noun: the act of looking or seeing or observing

noun: the range of vision

"Out of sight of land."

noun: the ability to see; the visual faculty

noun: an instance of visual perception

"The sight of his wife brought him back to reality."

noun: a range of mental vision

"In his sight she could do no wrong."

noun: anything that is seen

"He was a familiar sight on the television."

noun: (often followed by of') a large number or amount or extent

verb: catch sight of; to perceive with the eyes

"He caught sight of the king's men coming over the ridge."

verb: take aim by looking through the sights of a gun (or other device)