This is the 1056th most frequent Turkish word.
altyapı
"Altyapı" means "infrastructure."
Here, 'altyapı' refers specifically to the physical or systemic structures within a city, such as roads, plumbing, electrical systems, etc.
Şehirdeki altyapının yenilenmesi gerekiyor.
The infrastructure in the city needs to be renewed.
In this sentence, 'altyapı' metaphorically indicates a foundational system or preparation necessary for advancement in education.
Eğitimde iyi bir altyapı olmadan ilerleme sağlanamaz.
Without a good foundation in education, progress cannot be achieved.
Here, 'altyapı' pertains to the technical systems or components required for computer networks.