A short river that flows west along the Minnesota-Ontario border, past International Falls, into the Lake of the Woods. One of its sources is Rainy Lake, also on the border.
Definition of Rainy River in US English:
Rainy River
proper nounˌrānē ˈrivər
A short river that flows west along the Minnesota-Ontario border, past International Falls, into the Lake of the Woods. One of its sources is Rainy Lake, also on the border.