debut
Concise Oxford English Dictionary © 2008 Oxford University Press:
debut /ˈdeɪbjuː, -buː/
▶noun a person's first appearance in a capacity or role.
■ dated the first appearance of a debutante in society.
■ [as modifier] denoting the first recording or publication of a singer or writer.
▶verb make a debut.– origin C18: from Fr. début, from débuter ‘lead off’.
'debut' also found in these Oxford entries:

