A brook or acreek
A small stream is called a creek.
A small stream in a river is called a current.
Are you crazy? A stream or a small river is called a TRIBUTARY.
it is called a tributary
streams are very small rivers, small amounts of water.
A Tributary
pond
It is called a Weir.
A small brook or stream in a formal context is often referred to as a rivulet.
A very small stream is typically referred to as a rivulet or a brook. These are narrow, shallow bodies of water that flow slowly. They are often found in wooded areas or meadows.
A small, flowing body of freshwater is called a stream. Streams may also be called a: brook, creek, bayou, rivulet, wash, or run.
resorvoir