Learn Turkish: Bu elbisenin fiyatı çok pahalı. - The price of this dress is very expensive.

Elbise means "dress". By adding the genitive suffix -(n)in, it becomes elbisenin, meaning "of the dress" or "the dress's". This is how Turkish shows ownership or connection between two nouns.

Why is there an extra -n- in the middle of elbisenin?

The word elbise ends in a vowel. The genitive suffix here is -in. To prevent two vowels from crashing into each other, Turkish inserts a buffer letter. For the genitive case, that buffer is always n (unlike the y used for words like "to" or "the"). So it becomes elbise + n + in.

Why does fiyat (price) have an -ı at the end?

In Turkish, possession works like a two-way street. Not only does the owner get a suffix (like elbisenin), but the owned thing also gets a possessive suffix. Fiyat takes the 3rd-person singular possessive suffix -ı to become fiyatı (its price). Together, elbisenin fiyatı literally translates to "the dress's its price".

I've seen the genitive suffix written as -nın. Why is it -nin here?