This is the 14567th most frequent Polish word.
przyczepie
"Przyczepie" means "trailer" or "towable vehicle" in English, often referring to what is attached to a vehicle.
In this sentence, 'przyczepie' is the locative case of the noun 'przyczepa' ('trailer') used after the preposition 'przy' ('next to').
Samochód stoi przy przyczepie.
The car is standing next to the trailer.
Here, 'przyczepie' is the locative case of the noun 'przyczepa,' used with the preposition 'na' to indicate location.
Widzę piękną dekorację na przyczepie.
I see a beautiful decoration on the trailer.
In this context, 'przyczepie' is again the locative case of 'przyczepa,' functioning with the preposition 'w' to specify place.