(geography) An extent of land where water from rain or snow melt drains downhill into a river or series of rivers.

(archaic US slang) Used in reference to losing an election; found especially in the phrase "rowed up Salt River".

The European river lamprey (Lampetra fluviatilis).

plural of river lamprey

A large river in northern Bangladesh

(mythology, astronomy) the Milky Way, the night sky visual phenomenon caused by dense regions of the Milky Way Galaxy appearing nebulous (generally found when referring to East Asians in a historical context, situated in East Asia)

A river in South America, now more commonly called the Rio de la Plata.

The chief river of the North China Plain, currently flowing 5,463 km from the Bayan Har Mountains of Qinghai to the Bohai Sea but historically prone to massive floods which caused its course to vary widely over time.

A river that flows through eastern Texas and western Louisiana into the Gulf of Mexico.

A river in northern California.