This is the 3448th most frequent Turkish word.
memurun
"Memurun" means "of the officer" or "of the civil servant" in English.
In this sentence, 'memurun' is used as a possessive adjective meaning 'the officer's', modifying the noun 'desk'.
Kitabı memurun masasına koydum.
I placed the book on the officer's desk.
Here, 'memurun' is the possessive form meaning 'the officer's', indicating ownership.
Memurun işi çok zordur.
The officer's job is very difficult.
Here, 'memurun' specifies the subject of a subordinate clause designated as 'the officer'.