- a closed vessel or arrangement of vessels and tubes, together with a furnace or other heat source, in which steam or other vapor is generated from water to drive turbines or engines, supply heat, process certain materials, etc.
- a vessel, as a kettle, for boiling or heating.
- a large tub in which laundry is boiled or sterilized.
- a tank in which water is heated and stored, as for supplying hot water.
- a closed vessel or arrangement of enclosed tubes in which water is heated to supply steam to drive an engine or turbine or provide heat
- a domestic device burning solid fuel, gas, or oil, to provide hot water, esp for central heating
- a large tub for boiling laundry
- a tough old chicken for cooking by boiling
