osvežiti

1. to refresh
   Hladna limunada će te osvežiti. — A cold lemonade will refresh you.
2. (osvežiti se) to freshen up; to refresh oneself
   Samo da se osvežim i odmah dolazim. — Let me just freshen up and I'll be right there.
   Osvežili smo se kupanjem u reci. — We cooled off with a swim in the river.
3. (of memory, knowledge) to refresh; to brush up
   Pre ispita treba da osvežim znanje gramatike. — I need to brush up on my grammar before the exam.
   Daj da ti osvežim pamćenje. — Let me refresh your memory.
4. (of a look, interior) to freshen up; to update
   Novom bojom smo osvežili dnevnu sobu. — We freshened up the living room with new paint.
5. (computing) to refresh
   Osveži stranicu, možda će se pojaviti rezultati. — Refresh the page, the results might show up.

The imperfective counterpart is osvežavati.