okvir

1. (of a picture, glasses, window) frame
   Kupila sam novi okvir za fotografiju. — I bought a new frame for the photo.
   Naočare imaju tanak metalni okvir. — The glasses have a thin metal frame.
2. framework; scope; limits
   Moramo da ostanemo u okviru budžeta. — We have to stay within the budget.
   Vremenski okvir za projekat je šest meseci. — The time frame for the project is six months.

For a picture frame, people often say ram in everyday speech.