A viscous liquid derived from petroleum, used as a fuel or lubricant. The car's engine requires regular oil changes to function properly.
A liquid substance extracted from plants, animals, or minerals, used in cooking or as a flavoring. Olive oil is a popular choice for salad dressings and cooking.
A painting done with oil-based pigments. The gallery featured several oils by renowned artists.
A substance used in religious ceremonies for anointing. The priest used holy oil during the baptism ceremony.
Crude petroleum as extracted from the earth. Global demand for oil has fluctuated over the past decade.