diesel

noun

die·​sel ˈdē-zəl How to pronounce diesel (audio)
-səl
1
: diesel engine
2
: a vehicle driven by a diesel engine
3
: diesel fuel

Examples of diesel in a Sentence

Does your car take diesel or gasoline?
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Operators can also continue using diesel when hydrogen supplies are unavailable. — Aamir Khollam, Interesting Engineering, 3 Sep. 2026 The average price of diesel gas hit its highest level Wednesday since the Iran war started as a global supply bottleneck tightens and seasonal demand is poised to rise. — Rob Wile, NBC news, 2 Sep. 2026 Trucking and freight will face higher diesel prices hurting their margins, usually with a lag before those fuel surcharges catch up. — Todd Gordon, CNBC, 2 Sep. 2026 The United States needs the kind of heavy oil that Venezuela produces in order to make asphalt, factory oils and efficiently make diesel and jet fuel. — David Goldman, CNN Money, 1 Sep. 2026 See All Example Sentences for diesel

Word History

Etymology

Rudolf Diesel

First Known Use

1894, in the meaning defined at sense 1

Time Traveler
The first known use of diesel was in 1894

Phrases Containing diesel

Rhymes for diesel

See All Rhymes for diesel

Browse Nearby Words

dies comitialis
diesel
Diesel
See all Nearby Words

Cite this Entry

“Diesel.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/diesel. Accessed 3 Sep. 2026.

Copy Citation

Kids Definition

diesel

noun
die·​sel ˈdē-zəl How to pronounce diesel (audio)
-səl
1
: diesel engine
2
: a vehicle (as a truck or train) driven by a diesel engine
3
: a fuel designed for use in diesel engines
Etymology

named for Rudolf Diesel 1858–1913 German engineer

Biographical Definition

Diesel

biographical name

Die·​sel ˈdē-zəl How to pronounce Diesel (audio)
-səl
Rudolf 1858–1913 German mechanical engineer

More from Merriam-Webster on diesel

Britannica.com: Encyclopedia article about diesel

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Popular in Grammar & Usage

See More

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

A List of Most Commonly Confused Words

Why do we use apostrophes to show possession?

Is it 'nerve-racking' or 'nerve-wracking'?

What's the difference between 'fascism' and 'socialism'?
See More

Popular in Wordplay

See More

The Longest Long Words List

Stay Woke

Ye Olde Nincompoop: Old-Fashioned Words for 'Stupid'

14 Phobias You Probably Haven't Heard Of

The Words of the Week - Sept. 4
See More

Popular

See More

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

The Longest Long Words List

Stay Woke
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
skateboard-dog-hat
Wordmaxxing Slang Quiz Give your vocabulary a glow up by getting sendy w...
See All