This is the 891st most frequent Hungarian word.
oldal
The Hungarian word "oldal" means "side" or "page" in English.
Here, 'oldalán' indicates the side or part of the house.
A háznak északi oldalán van az ablak.
The window is on the northern side of the house.
Here, 'oldala' refers to the two faces (or aspects) of the medal.
Az éremnek két oldala van.
The medal has two sides.
In this sentence, 'oldalára' means 'page' in the context of a book.