This is the 11123rd most frequent Turkish word.
duvarını
"Duvarını" means "your wall" in English.
In this sentence, 'duvarını' is used as the accusative form of 'duvar' (wall), denoting the object of the verb 'boyadı' (painted).
Ahmet, odanın duvarını maviye boyadı.
Ahmet painted the room's wall blue.
Here, 'duvarını' refers to 'the wall' as a possession of the garden, and it's in accusative case following the verb 'yenilemeyi' (renovating).
Büşra, bahçe duvarını yenilemeyi düşünüyor.
Büşra is considering renovating the garden wall.
In this example, 'duvarını' indicates a specific wall ('the city's old wall') that is the direct object of the action 'süsledi' (adorned).