This is the 15124th most frequent Turkish word.
sildiği
"That which he/she/it wiped or erased."
In this sentence, 'sildiği' is used as a relative clause describing the action of wiping, referring to the old books.
Kitaplığı temizlerken eski kitapları da sildiği görüldü.
While cleaning the bookshelf, it was seen that they also wiped the old books.
Here, 'sildiği' connects the act of wiping stains with the timeframe when the phone rang.
Boyacı duvardaki lekeleri sildiği sırada telefonu çaldı.
While the painter was wiping the stains off the wall, their phone rang.
In this example, 'sildiği' refers to the erased notes, indicating the reason for requesting them again.