| OI | an interface forming the boundary between the non-miscible liquids oil and water |
|---|---|
| OI | nocturnal fruit-eating bird of South America that has fatty young yielding an oil that is used instead of butter |
| OI | a can with a long nozzle to apply oil to machinery |
| OI | cloth treated on one side with a drying oil or synthetic resin |
| OI | treated with oil |
| OI | a cargo ship designed to carry crude oil in bulk |
| OI | a well that yields or has yielded oil |
| OI | a worker who oils engines or machinery |
| OI | a region rich in petroleum deposits (especially one with producing oil wells) |
| OI | very large deep-water snake mackerel |
| OI | smug self-serving earnestness |
| OI | consisting of or covered with oil |