Fuel

/fjuːəl/

Meaning & Definition

noun
A material, such as coal, gas, or oil, that is burned to produce heat or power.
The car runs on gasoline, which is a common type of fuel.
A substance that provides energy for the operation of machines or for heating.
Wood is often used as fuel in fireplaces during the winter.
Something that stimulates or sustains activity or emotion.
The news provided fuel for the ongoing debate about climate change.
verb
To provide with fuel; to supply energy or power to something.
The workers fuel the generator every week to ensure it runs efficiently.
To increase the intensity or activity of something.
The rumors only fueled the controversy surrounding the politician.

Etymology

Middle English: from Old French: ‘fouaille’ meaning ‘firewood’, from Latin ‘focus’ meaning ‘hearth’.

Common Phrases and Expressions

fire up:
To cause something to start operating or to become more active.
fuel the fire:
To increase or intensify a situation or emotion.
running on fumes:
To continue to operate when almost out of fuel or energy.

Related Words

Slang Meanings

Juice
I need some juice for my phone.
Nitro
This car needs some nitro to run fast.