definition of
oil

[1] #1 oil n. a slippery or viscous liquid or liquefiable substance not miscible with water. wn

[2] #2 oil n. [oil color, oil colour] oil paint containing pigment that is used by an artist. wn

[3] #3 oil v. cover with oil, as if by rubbing; "oil the wooden surface". wn

[4] #4 oil v. [anoint, inunct, anele, embrocate] administer an oil or ointment to ; often in a religious ceremony of blessing. wn

[5] #5 oil n. [petroleum, crude oil, crude, rock oil, fossil oil] a dark oil consisting mainly of hydrocarbons. wn