Meaning & use

oil

noun, verb·Everyday

Last updated

UK/ɔɪl/
US/ɔɪl/

Meanings

  1. nouncountable or uncountable

    A thick, greasy liquid that does not mix with water, used as fuel, for lubrication, or in cooking.

    Grammar: Countable when referring to a specific type (e.g., 'olive oils'), uncountable when referring to the substance in general (e.g., 'a bottle of oil').

    Patterns

    • cooking oil
    • motor oil
    • a drop of oil

    She poured a little oil into the frying pan.

    The mechanic checked the oil in the engine.

    The country's economy depends on exporting crude oil.

  2. verbtransitive

    To lubricate or treat something with oil.

    Grammar: Takes an object: oil the hinges.

    Patterns

    • oil something
    • oil the wheels

    He oiled the bicycle chain to stop it squeaking.

    The chef oiled the pan before adding the batter.

Word forms

pluraloils
third person singularoils
past tenseoiled
past participleoiled
present participleoiling

Common combinations

olive oil
She dressed the salad with olive oil and lemon juice.
oil change
The car needs an oil change every 5,000 miles.
oil well
They drilled an oil well in the desert.
essential oil
Lavender essential oil can help you relax.

Synonyms and how they differ

petroleum
Refers specifically to crude oil from the ground, not to cooking oils.
lubricant
A general term for any substance that reduces friction; oil is one type.
grease
A thicker, more solid lubricant; oil is usually more liquid.

Word family

oily adjective
Covered with or containing oil; also describes food that tastes of oil.
oiler noun
A ship that carries oil, or a device for applying oil.

Practice

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