This is the 304th most frequent Urdu word.
تعمیر
Construction or building.
Here, 'تعمیر' is used to denote the constructing of a physical structure, showing a concrete application of the term.
ہم نے ایک نئی عمارت کی تعمیر کا آغاز کیا۔
We began the construction of a new building.
In this sentence, 'تعمیر' is used metaphorically to mean 'development' or 'enhancement' of one's personality.
آپ کو اپنی شخصیت کی تعمیر پر کام کرنا چاہئے۔
You should work on the development of your personality.
'تعمیر' here refers to the progress or improvement at a national or collective level.