Tributary.
Xi River is the name of a river in China. Xingu River is the name of a river in Brazil.
Murray River is the name of a river in Australia. Maranon River is the name of a river in Peru.
A river that begins with I is the Illinois River in Illinois USA.
River Komati River Kymijoki
One known river is the Danube.
It Joins at a confluence. That is where the river joins the larger one.
confluence
The smaller river is a tributary to the big one.
estuary
tributary is the collective term A tributary is a smaller stream which flows into a larger river. The name of an individual stream depends on the size of the stream. It may be a river or a creek or a canal if it is manmade.
Tangle Creek, Granite Creek, Sycamore Creek, Wet Bottom Creek, East Verde River, Fossil Creek and Oak Creek.
merge&center
A smaller stream of freshwater that flows into a larger stream is called a "tributary." Tributaries contribute to the flow and water volume of the main river or stream they feed into, and they play an important role in the watershed ecosystem.
an isthmus joins two larger bodies of land, and a tombola joins an island to a mainland. But may be flooded at high tide.
The third river that joins the Yamuna and Ganga at the Sangam is the Sarasvati River. Although it is often considered a mythical river, it holds significant cultural and religious importance in Hinduism. The confluence of these three rivers at Prayagraj is a major pilgrimage site.
emptying, ending, exiting
It is called the River Confluence. The smaller river being a tributary to the larger river.