Dictionary.com
Thesaurus.com

tonne

American  
[tuhn] / tʌn /

noun

  • tonnes
    plural
  1. metric ton.


tonne British  
/ tʌn /

noun

  1. Also called (not in technical use): metric ton.  a unit of mass equal to 1000 kg or 2204.6 pounds

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms

Etymology

Origin of tonne

From French, dating back to 1900–05; see origin at ton 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

London white sugar futures hit $541 a tonne in mid-August, their highest since April 2025, while New York raw sugar futures jumped 4% on the day India announced its imports.

From BBC Aug. 26, 2026

It later emerged he had been negotiating his plea for months, a fact which she said "hit me like a tonne of bricks".

From BBC Aug. 8, 2026

Launching a tonne of cargo can cost tens of millions of pounds, while a trip to Mars usually takes between six and nine months, depending on the positions of Earth and Mars in their orbits.

From Science Daily Aug. 7, 2026

Extracting a tonne of coal now costs nearly twice as much as importing it, and domestic production no longer fully covers the country's needs.

From Barron's Jul. 17, 2026

Weighing up to a tonne, the Erumpent may be mistaken for a rhinoceros at a distance.

From "Fantastic Beasts and Where to Find Them" by J.K. Rowling

In 2016, Myanmar supplied nearly 500,000 metric tonnes of tin ore and concentrate to China, accounting for more than 99 percent of such imports, Beijing's customs data shows.

From Barron's Sep. 10, 2026

China's imports of tin ore and concentrates from Myanmar in the first half of 2026 have already surpassed 2025's total at nearly 40,000 metric tonnes, Beijing's customs data shows.

From Barron's Sep. 10, 2026

A peatland that deep has been known to harbour more than 6,000 tonnes of carbon – roughly equivalent to the annual CO₂ emissions of 4,800 cars – per hectare.

From BBC Sep. 6, 2026

At the heart of the detector are 10 tonnes of extremely pure liquid xenon.

From Science Daily Sep. 4, 2026

It weighs between two and four tonnes, the female being larger than the male.

From "Fantastic Beasts and Where to Find Them" by J.K. Rowling

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember new words for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com