What is the pronunciation of oil?
Meaning of "oil" - Business English Dictionary
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oil verb [T]
› to put oil on something, especially a machine, to make it work more easily without sticking: You may need to oil the wheels and joints.
oil the wheels informal ( US grease the wheels) › to make it easier for something to happen, especially in business or politics: The new proposal will oil the wheels of deal-making by ensuring that the negotiations get off to a quicker start.