This is the 9135th most frequent Polish word.
szczeciński
"Related to Szczecin," a city in Poland.
The word "szczeciński" acts as an adjective derived from Szczecin, a city, indicating that the port belongs to or is located in Szczecin.
Szczeciński port odgrywa ważną rolę w handlu morskim.
The Szczecin port plays an important role in maritime trade.
Here, "szczeciński" modifies "zabytków" (monuments), showing they are associated with Szczecin.
To muzeum jest jednym z najważniejszych szczecińskich zabytków.
This museum is one of the most important Szczecin monuments.
The adjective "szczeciński" in this case specifies the geographical origin of the festival, implying it is held in Szczecin.