Did you know?

Click any word in a definition or example to find the entry for that word

oil - definition and synonyms

 
 
 
Close

What are red words?

90% of the time, speakers of English use just 7,500 words in speech and writing. These words appear in red, and are graded with stars. One-star words are frequent, two-star words are more frequent, and three-star words are the most frequent.

Close

Thesaurus

The thesaurus of synonyms and related words is fully integrated into the dictionary. Click on the thesaurus category heading under the button in an entry to see the synonyms and related words for that meaning.

more
noun oil pronunciation in American English /ɔɪl/
Word Forms
Close
singularoil
pluraloils
  • Facebook
  • Twitter
  1. 1
    [uncountable] a thick dark smooth liquid from under the ground, used for making gas and other fuels
    The Middle Eastern countries produce most of the world’s oil.
    We need to do more to reduce our dependence on foreign oil.
    Heat can be provided by oil, gas, or electricity.
    crude oil (=oil in its natural state): A large tanker can carry several million tons of crude oil.
    1. a.
      [only before noun] relating to this liquid
      Oil prices will probably rise again next year.
      an oil company
      China has large coal and oil reserves.
  2. 2
    [countable/uncountable] a thick smooth liquid used in an engine, so it will work smoothly
    Change the oil in your car every 3,000 miles.
  3. 3
    [countable/uncountable] a thick smooth liquid used in cooking and preparing food, and in medicines
    Cook the chicken in some oil.
    vegetable/olive/sunflower oil
    peanut/sesame/walnut oil
    cod liver oil
  4. 4
    [countable/uncountable] [usually plural] a type of paint that contains oil
    in oils: I prefer to work in oils.
    1. a.
      [countable] a painting made with paint that contains oil
      We saw an exhibit of oils and watercolors by local artists.

confidence and supply

an agreement between political parties that allows a minority party to play a part in government but is less formal than a coalition …

BuzzWord Article

Open Dictionary

troll factory

a company that pays its employees to write online comments in favour or against somebody or something posing as ordinary Internet users

add a word

Blog

A must for anyone with an interest in the changing face of language. The Macmillan Dictionary blog explores English as it is spoken around the world today.

global English and language change from our blog