gökyüzünü

Gökyüzünü is the accusative form of gökyüzü, the Turkish word for the sky. Gökyüzü is a compound of gök (sky/heaven) and yüz (face or surface), literally “the face of the sky.” In Turkish grammar, the accusative case marks a definite direct object, and its suffixes vary with vowel harmony. For gökyüzü, the accusative form is gökyüzünü. This form is used whenever the sky is the object of a verb, for example: Gece gökyüzünü seyrederiz. Gün doğarken gökyüzünü gözlemlediler.

The structure illustrates how Turkish builds the definite direct object with suffixes rather than articles. The phrase may appear in literature, astronomy, weather reporting, and everyday speech.