What is the difference between "bridge" and "flyover"?

A "bridge" is a structure built to span a physical obstacle like water, a valley, or roadways, allowing passage over it. It's a general term for a raised passage connecting two points.

A "flyover" is a type of bridge that specifically enables traffic to bypass intersections or congested areas by elevating the roadway above the ground, facilitating uninterrupted travel. It's a type of bridge designed for transportation efficiency, often used to ease traffic flow. Essentially, all flyovers are bridges, but not all bridges are flyovers.