This is the 1615th most frequent Turkish word.
siyah
Black.
In this example, 'siyah' is functioning as an adjective describing the pen's color.
Siyah kalem almak istiyorum.
I want to buy a black pen.
In this sentence, 'siyah' is used as an adjective to describe the color of the dress.
Elbisesi siyah renkliydi.
Her dress was black in color.
Here, 'siyah' appears as a noun referring to the color black.