"river" - key terms from Wikipedia

amazon river
arkansas river
charles river
chicago river
colorado river
columbia river
congo river
connecticut river
cry me a river
cuyahoga river
delaware river
east river
fall river
fox river
grand river
green river
hudson river
indus river
james river
johns river
lawrence river
mississippi river
missouri river
mystic river
niagara river
nile river
ohio river
ottawa river
pearl river
pearl river	delta
platte river
potomac river
red river
river
river	avon
river	dolphin
river	phoenix
river	plate
river	thames
river	tyne
saint lawrence river
snake river
susquehanna river
tennessee river
toms river
willamette river
wind river
yangtze river
yellow river
yukon river