1. a vertical structure that carries smoke and gases from a fireplace or furnace up through the roof of a building
2. a tall narrow opening or passage in rock
Usage: geology; mountaineering
3. a glass tube that surrounds the flame of an oil lamp

Examples

• Smoke rose from the brick chimney on the old farmhouse.
• The fireplace chimney needs to be cleaned before winter.
• Santa Claus is said to come down the chimney on Christmas Eve.
• The climbers squeezed through a narrow rock chimney to reach the summit.
• The oil lamp’s chimney cracked from the heat.
• Birds sometimes build nests in unused chimneys.