The Swedish word for stream is
ström

Translations for stream and their definitions

Ström
1. Proper noun. surname
2. n-c. current, flow; the part of a fluid that moves continuously in a certain direction
3. n-c. current; a flow of electric charge
4. n-c. stream; a thin connected passing of a liquid through a lighter gas (e.g. air)
5. n-c. stream; any steady flow or succession of material, such as water, air, radio signal or words
6. n-c. (sciences) stream; umbrella term for all moving waters
7. n-c. (computing) stream; a source or repository of data that can be read or written only sequentially.

bäck
1. n-c. a small stream or brook

å
1. n-c. a river, a creek, a big stream
Gå inte över ån efter vatten. - Don’t cross the stream to get water.
2. prep. (obsolete except in certain expressions) on