"Eu nu sunt fată."

Translation: I am not a girl.

[JacobRumowicz]

Why is there not an indefinite article before the word for girl?

[Caesar_Imperator]

When you talk about your sex or your profession you do not use articles. Examples:

Eu sunt inginer. - I am an engineer.

Ea este profesoară. - She is a teacher.

Ei sunt bărbați. - They are men.

Prietena mea este studentă. - My (girl)friend is a student.

[Summer.Breeze]

Just like with the German language. :)

[PieS717058]

Only with proffesions, it doesn't work with boy/girl/woman etc.