WordWeb Online

1. A slippery or viscous liquid or liquefiable substance not miscible with water
    
2. Oil paint containing pigment that is used by an artist
   - oil color [US], oil colour [Brit, Cdn]
    
3. A dark oil consisting mainly of hydrocarbons
   - petroleum, crude oil, crude, rock oil, fossil oil, black gold [informal]
    
4. Any of a group of liquid edible fats that are obtained from plants
   - vegetable oil

1. Cover with oil, as if by rubbing
   "oil the wooden surface"
    
2. Administer an oil or ointment to; often in a religious ceremony of blessing
   - anoint, inunct, anele [archaic], embrocate
    
3. Lubricate with oil
   "oil the squeaky door"

Derived forms: oiled, oiling, oils

Type of: bless, cover, edible fat, fossil fuel, lipid, lipide, lipoid, oil paint

Part of: margarine, marge [Brit, informal], oleo [N. Amer], oleomargarine [N. Amer]

Encyclopedia: Oil, Gas & Energy Law