North AmericaUnited KingdomAustralianeutraltechnical
- A heating appliance or furnace that burns fuel oil to provide space heating for a building.
Worldwideinformaltechnicalhousehold
- A small device used to heat or evaporate scented oils or essential oils for fragrance or aromatherapy purposes.
WorldwideNorth AmericaUnited Kingdominformalslangautomotive
- A colloquial term for an engine or vehicle that runs on diesel fuel; sometimes used to describe a diesel-powered car or a high‑consumption engine.