(1):

(n.) A person under a guardian; a ward.

(2):

(n.) The aperture in the iris; the sight, apple, or black of the eye. See the Note under Eye, and Iris.

(3):

(n.) A youth or scholar of either sex under the care of an instructor or tutor.

(4):

(n.) A boy or a girl under the age of puberty, that is, under fourteen if a male, and under twelve if a female.