oil

(noun) a slippery or viscous liquid or liquefiable substance not miscible with water.

(noun) oil paint containing pigment that is used by an artist. Synonyms: oil color, oil colour.

(noun) a dark oil consisting mainly of hydrocarbons. Synonyms: petroleum, crude oil, crude, rock oil, fossil oil.

(noun) any of a group of liquid edible fats that are obtained from plants. Synonyms: vegetable oil.

(verb) cover with oil, as if by rubbing. Example: "Oil the wooden surface."

(verb) administer an oil or ointment to ; often in a religious ceremony of blessing. Synonyms: anoint, inunct, anele, embrocate.