(dated) An oil extracted from the gurjun tree. / (literally) Any sort of oil made from wood.

A vegetable oil pressed from canola seeds, used in cooking or as basis for biodiesel.

A purified fat taken from plant material that is commonly used in cooking, e.g. olive oil, canola oil, sunflower oil, etc.

Oil obtained from the blubber of marine mammals, especially whale oil.

whale oil from a sperm whale

(UK, law) Any oil that is either a light oil, or a heavy oil that falls into the excise definition of gas oil, fuel oil or kerosene.

A lotion of linseed oil and limewater, applied to burns and scalds.

An oil pressed from the seeds of Moringa oleifera.

(slang, idiomatic, sometimes pejorative, sometimes ethnic slur) An uncultured, rowdy roughneck employed in the petroleum industry, especially a "white trash" person if used negatively.

(now rare) Olive oil.