1de·but 
/ˈdeɪˌbju:/ noun
plural de·buts /ˈdeɪˌbju:/ noun [count] : the first time an actor, musician, athlete, etc., does something in public or for the public
▪ my debut as a pianist ▪ He made his singing debut at a very young age. ▪ She is making her television/film debut. — sometimes used to refer to the first appearance of a product, sport, event, etc. ▪ the debut of a new car ▪ The sport's Olympic debut took place in 1980. — often used before another noun ▪ her debut album/film/novel
▪ my debut as a pianist ▪ He made his singing debut at a very young age. ▪ She is making her television/film debut. — sometimes used to refer to the first appearance of a product, sport, event, etc. ▪ the debut of a new car ▪ The sport's Olympic debut took place in 1980. — often used before another noun ▪ her debut album/film/novel
