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

Examples

• The Mississippi River flows through several states.
• We crossed the river by boat.
• The village was built along the river bank.
• Salmon swim upstream in the river to spawn.
• The river flooded after heavy rains.
• Children played by the river’s edge.
• The ancient city was founded where two rivers meet.