A large natural stream of water flowing in a channel to the sea, a lake, or another river.

A metaphorical use referring to a flow or stream of something, such as information or ideas.

प्रवाह

English Usage: The international rivers of knowledge should flow freely among countries.

Hindi Usage: ज्ञान की अंतरराष्ट्रीय नदियाँ देशों के बीच मुक्त रूप से प्रवाहित होनी चाहिए।