Definitions

1. noun

a viscous liquid derived from petroleum, used as a fuel, lubricant, or for other purposes

“The car’s engine was lubricated with motor oil.”

2. verb

to make or become oily

“The clothes had to be washed because they had been oiled by the nearby machinery.”

3. verb

to treat (a part of a machine) with oil

“The mechanic oiled the hinges to make them run smoothly.”

4. adjective

covered or resembling oil

“The oily sheen on the water was a sign of pollution.”

5. noun

a substance that gives a glossy appearance to hair or skin

“The hairstylist applied oil to the client’s hair for a shiny finish.”