This is the 12372nd most frequent Turkish word.
hazırlaması
"The preparation (of something)."
Here, 'hazırlanmasını' is derived from 'hazırlamak' and is in the possession form combined with a causative formation, indicating that the preparation of the project is the focus.
Bu projenin hazırlanmasını üstlendim.
I took the responsibility of preparing this project.
The term 'hazırlanması' here refers to the process of getting something, specifically the meal, ready, emphasizing the time aspect.
Yemeğin hazırlanması oldukça zaman aldı.
The preparation of the meal took quite some time.
This sentence uses 'hazırlanması' and expresses the necessity tied to an event, specifically mentioning the task as significant.