A heating device which burns fuel oil; an oil furnace. / A machine that uses oil as its fuel. / (idiomatic) A device whose operation causes apparent combustion of lubricating oil.

(watchmaking) olive oil after it has been purified and rendered limpid.

A spot consisting of oil; for instance, in the ocean subsequent to an oil spill.

plural of olive oil

(regional) kerosene or any unspecified lower grade derivative of crude petroleum

A petroleum product used as fuel in a heating system and not requiring preheating for use.

plural of oil painting

plural of oil well

A spicy condiment in which crushed dried red chili peppers (and sometimes other ingredients) have been macerated in oil

An essential oil extracted from the petals of various types of roses, used mainly for flavouring and perfumes.