While each male adolescent is different, the following are average ages when puberty changes may occur: Beginning of puberty: 9.5 to 14 years old. First pubertal change: enlargement of the testicles. Penis enlargement: begins approximately one year after the testicles begin enlarging. Appearance of pubic hair: 13.5 years old. Nocturnal emissions (or wet dreams): 14 years old. Hair under the arms and on the face, voice change, and acne: 15 years old. Girls also experience puberty as a sequence of events, but their pubertal changes usually begin before boys of the same age.
plot verb (MARK) âº [ T ] to mark or draw something on a piece of paper or a map. âº [ T ] to make marks to show the position, movement, or development of something, usually in the form of lines or curves between a series of points on a map or piece of paper: Radar operators plotted the course of the incoming missile.
plot. 1  a. A small piece of ground, generally used for a specific purpose: a garden plot. b. A measured area of land; a lot. 2  A ground plan, as for a building; a diagram. 3  See graph1. 4  The pattern or sequence of interrelated events in a work of fiction, as a novel or film. 5  A secret plan to accomplish a hostile or illegal purpose; a scheme.