debutant
US /ˈdeb.jʊ.tɑːnt/
UK /ˈdeb.jʊ.tɑːnt/

1.
дебютант, дебютантка, новичок
a person making a first public appearance, especially in society or in a professional capacity
:
•
The young actress made her debutant performance in the new play.
Молодая актриса выступила в качестве дебютантки в новой пьесе.
•
She was a debutant at the annual ball.
Она была дебютанткой на ежегодном балу.