It's called "bank." As in river bank.
Water is called a stream when flowing in a definite direction.
A river.
Stream.
It is a fresh water stream.
The maximum velocity of water flowing in a stream is typically found in the center of the stream, where the water is deepest and has the least amount of friction with the streambed and banks.
River, stream, waterway, brook, canal, or watercourse
lakes or where theres a stream of water flowing
These streams are called Currents. An example would be The Gulf Stream.
A stream of water flowing towards the sea is called a "river." Rivers are natural watercourses that collect water from precipitation, runoff, and tributaries, and they usually flow into larger bodies of water such as oceans or seas. They play a crucial role in ecosystems and are vital for human activities such as agriculture, transportation, and recreation.
stream of water flowing over a spillway
stream
A flowing water that is confined to a narrow depression in the Earth is called a stream or a creek. These water bodies typically have defined channels that carry water downstream due to gravity.