Learn Polish: Gdzie jest twój bilet studencki? - Where is your student ticket?

To form this relational adjective, we add the suffix -ski to the noun student. Because student ends in a -t, adding -ski causes a sound and spelling change where t + s combines into c. This is why it is spelled studencki rather than "studentski".

Why does the adjective studencki come after the noun bilet instead of before it?

In Polish, classifying or relational adjectives that define a specific category or type usually go after the noun. Since studencki tells us the exact category of the ticket, it follows bilet. If it were a descriptive adjective expressing an opinion or quality (like "drogi" for expensive), it would normally go before the noun.

Does bilet studencki just mean any ticket bought by a student?

It specifically means a discounted student ticket. The relational adjective studencki directly categorizes the ticket type, which in Poland usually requires the passenger to carry a valid university student ID card (legitymacja studencka) to prove they are eligible for the discount.

Why do we use twój instead of twoja or twoje here?