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 - devise the sequence of events in (a literary work or a play, movie, or ballet); the writer is plotting a new novel