fuel

noun

Substance consumed to provide energy through combustion, or through chemical or nuclear reaction.

Substance that provides nourishment for a living organism; food.

(figuratively) Something that stimulates, encourages or maintains an action.

verb

(transitive) To exacerbate, to cause to grow or become greater.

(transitive) To provide with fuel.

Roots

focusfu- · Latin · hearth, fireplace

Synonyms for fuel

gasn combustiblen propellantn oiln exhaustn

Synonyms & related words for fuel

Find synonyms, related words, and the definition of fuel — including gas, combustible, propellant, oil, exhaust. Dendril is a free visual thesaurus that shows them on an interactive map where stronger matches sit closer to the center — no signup, no ads.

Words related to fuel

Explore words related to fuel — words associated with it, words that go with it, and its nearest matches in meaning. Related words include gasoline, petrol, gasohol, diesel, derv, dieselize, kerosene, ligroin. Click any word to make it the center of the map and keep exploring the web of connections.

Synonyms for fuel

Common synonyms for fuel include gas, combustible, propellant, oil, exhaust — words that share a close meaning. Hover or tap any word on the map for its definition and part of speech.

Where does fuel come from?

The word fuel breaks down into one root of Latin origin: the root fu-, from Latin focus (“hearth, fireplace”). Explore each root to see other English words built from the same source.