This is the 2926th most frequent Turkish word.
planı
The word "planı" in Turkish means "his/her/its plan" or "the plan" (possessive form).
Here, 'planı' is used to denote 'her/his plan' because of the possessive suffix attached to 'plan' in Turkish.
Yeni proje için güzel bir planı vardı.
She had a nice plan for the new project.
In this sentence, 'planı' refers to a specific plan using the definite article equivalence in Turkish.
Bu hafta sonu için planı iptal ettik.
We canceled the plan for this weekend.
Here, 'planı' indicates a particular plan, incorporating a direct object role in the sentence.