plural
rivers
plural
rivers
Britannica Dictionary definition of RIVER
[count]
1
:
a large natural flow of water that crosses an area of land and goes into an ocean, a lake, etc.
-
the Mississippi River
-
The raft is too small to use on this part of the river.
-
They have a house on the river. [=on land next to the river]
-
Large boats came up/down the river. [=in the opposite/same direction that the river is flowing]
-
the mouth of the river = the river's mouth = the river mouth [=the place where the river enters the ocean]
—
see color picture on this page;
compare stream
2
:
a large flow of something
—
often + of
sell (someone) down the river
—
see 1sell
up the river
US, old-fashioned + informal