Tisuću means one thousand. For the number to be unambiguous, it needs a scene with a thousand of something in it.
In a football stadium a thousand people are sitting in the stand looking at the pitch. Down there stands a big tiger looking for a dancer to do the cha-cha-cha, and it keeps glancing at its watch. Tiger, looking, dancer, cha and watch (Uhr in German) give you tisuću.
With sto and tisuću you have the two numbers that appear most often on price tags.