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Updated June 2026
A type of fuel oil used in diesel engines, or an engine that uses this fuel.
“The truck runs on diesel fuel instead of gasoline.”
/ˈdiːzəl/
die·sel
Has double E and ends with -EL pattern, useful vowel placement.
Worth 7 points, good for parallel plays with the S.
Look up diesel in an authoritative dictionary for full definitions, pronunciation, and etymology.

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