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Word of the Day Tuesday, June 9, 2026

diesel

/dɪˈzɛl/ noun · British & US
Valid in UKValid in US
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What does diesel mean?

noun

A type of internal combustion engine that uses diesel fuel, typically characterized by its high compression ratio and lack of spark plugs. Diesel engines are often used in trucks, buses, and other heavy vehicles.

Example

"The truck's diesel engine roared to life as the driver turned the key."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for diesel

Antonyms of diesel

Rhymes with diesel

Etymologically related