Learn Farsi: تراکم جمعیت در پایتخت نسبت به شهرهای دیگر بیشتر است. - Population density in the capital is greater compared to other cities.

Yes, you could say az shahr-ha-ye digar bishtar ast, which is the standard way to form comparisons. However, nesbat be (literally "relative to" or "compared to") is used here because it fits the formal, analytical tone of the sentence. It elevates the register and sounds more objective when discussing topics like demographics.

Why use bishtar (more) instead of a specific word for "greater" or "higher" when talking about density?

In Farsi, bishtar is the most natural comparative to use for quantities, amounts, and statistical levels like population density. While you might use "higher" or "greater" in English, Farsi frequently relies on bishtar for statistical figures, though bala-tar (higher) is also sometimes used.

How does the word order work with this formal comparative structure?

The structure follows the standard Farsi comparison word order: the reference point (nesbat be shahr-ha-ye digar) comes immediately before the comparative adjective (bishtar) and the verb (ast). Even though it is a longer, more formal phrase than a simple az, it slots into the exact same position in the sentence.

I see jam'iyat means population. Can tarakom be used for other types of density or crowding?

Yes, tarakom is an Arabic loanword meaning density, accumulation, or congestion. Beyond tarakom-e jam'iyat (population density), you will frequently encounter it in analytical texts in phrases like (traffic congestion) or (building density).