This is the 9183rd most frequent Turkish word.
uçağın
"Uçağın" means "your plane" or "the plane's" in English, depending on context.
Possessive usage to indicate belonging (the door of the plane).
Uçağın kapısı henüz açılmadı.
The plane's door has not opened yet.
Genitive usage indicating the action related to 'the plane' (in this case, its landing).
Uçağın inişi başarılı oldu.
The landing of the plane was successful.
Descriptive usage describing a characteristic or type of the plane itself.