A man is a boy who grew up: an adult male. Man has hundreds of other meanings too, most of them guy-related., MAN meaning: 1. an adult male human being: 2. an adult who lives and identifies as male though they may have…. Learn more., A man is an adult male human being. He had not expected the young man to reappear before evening. the thousands of men, women and children who are facing starvation., Man definition: A human or an adult male human belonging to a specific occupation, group, nationality, or other category. Often used in combination., People use the word "man" (one man, two or more men) to talk about gender. Manhood is the period in a male's life after he changes from a boy. A boy is a male child; a female child is called a girl. After boys reach maturity, they can be called a man., MAN meaning: 1 : an adult male human being; 2 : a man or boy who shows the qualities (such as strength and courage) that men are traditionally supposed to have.