1. a pipe with a valve from which water can be drawn from a water main, especially for firefighting

Examples

• The firefighters quickly connected their hose to the nearest hydrant.
• The fire hydrant was painted bright red for easy visibility.
• Workers tested the water pressure from each hydrant on the street.
• A car was parked illegally in front of the hydrant.
• The city installed new hydrants throughout the residential area.
• Ice had frozen around the base of the hydrant during winter.