English

Definition of oil verb from the Oxford Advanced Learner's Dictionary

 

oil

 verb
verb
BrE BrE//ɔɪl//
 
; NAmE NAmE//ɔɪl//
 
Verb Forms present simple I / you / we / they oil
BrE BrE//ɔɪl//
 
; NAmE NAmE//ɔɪl//
 
he / she / it oils
BrE BrE//ɔɪlz//
 
; NAmE NAmE//ɔɪlz//
 
past simple oiled
BrE BrE//ɔɪld//
 
; NAmE NAmE//ɔɪld//
 
past participle oiled
BrE BrE//ɔɪld//
 
; NAmE NAmE//ɔɪld//
 
-ing form oiling
BrE BrE//ˈɔɪlɪŋ//
 
; NAmE NAmE//ˈɔɪlɪŋ//
 
 
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  • oil something to put oil onto or into something, for example a machine, in order to protect it or make it work smoothly He oiled his bike and pumped up the tyres.
  • Word Origin Middle English: from Old Northern French olie, Old French oile, from Latin oleum ‘(olive) oil’; compare with olea ‘olive’.Idioms
    oil the wheels (British English) (North American English grease the wheels)
     
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    to help something to happen easily and without problems, especially in business or politics
    See the Oxford Advanced American Dictionary entry: oil