미터법에 따른 질량의 단위로, 1,000 킬로그램에 해당한다.
A unit of mass in the metric system equal to 1,000 kilograms, equivalent to approximately 2,204.6 pounds.
예문:
"The cargo ship has a maximum capacity of fifty thousand tonnes."
"Global production of wheat reached several million tonnes last year."
"The recycling plant processes ten tonnes of plastic waste every day."