Tributary
Please rephrase - the question is unclear.
tributary
A river which flows into another river
A tributary.
it is called the tumber river
A river or such like that flows out of another river or such like.
An affluent, a smaller river that flows into another bigger river or a lake.
Tributary when one river flows into another or if more than one river merges to form another - Confluence
The river Rhine.
Fleuve = River that flows in the ocean Rivière = River that flows into another rivière or into a fleuve (NOT into the ocean)
mr wobstical
Please rephrase - the question is unclear.
Where two rivers join, this is known as the confluence.