šina

1. rail; track
   Tramvaj je iskočio iz šina kod Slavije. — The tram came off the rails near Slavija.
   Radnici ove nedelje menjaju šine na pruzi. — Workers are replacing the rails on the line this week.
2. (for curtains, doors, drawers) guide rail; track
   Kupili smo novu šinu za zavese u dnevnoj sobi. — We bought a new curtain track for the living room.
   Klizna vrata su iskočila iz šine. — The sliding door came off its track.
3. (in medicine) splint
   Lekar mu je stavio šinu na slomljeni prst. — The doctor put a splint on his broken finger.

In the sense 'rail' it is mostly used in the plural: šine. In medicine udlaga is also used.