razmak

1. space; gap; distance
   Držite razmak od vozila ispred sebe. — Keep your distance from the vehicle in front of you.
   Između stolova nema dovoljno razmaka. — There isn't enough space between the tables.
2. (of time) interval; time gap
   Autobusi idu u razmaku od deset minuta. — The buses run at ten-minute intervals.
   Rodili su se u razmaku od dve godine. — They were born two years apart.
3. (in results, rankings) gap; margin
   Razmak između prve i druge ekipe je pet bodova. — The gap between the first and second teams is five points.
4. (in text, on a keyboard) space; space bar
   Stavi razmak između ove dve reči. — Put a space between these two words.
   Pritisni razmak da nastaviš. — Press the space bar to continue.

A time interval is usually expressed with u razmaku od + genitive.