debutante

noun
1
a young, rich or upper-class woman who is going to fashionable social events for the first time
دختر تازه‌وارد به اجتماع, دوشیزه نوظهور در مجالس
2
a woman who is making her first public appearance, especially in sport or films; a female debutant
زن تازه‌وارد, زن نوکار, دوشیزه تازه‌وارد, زن نوپا
The film, released on 15th July, also stars debutante Diana Penty.