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tonne

1

A metric ton (= 1000 kilograms). In English, this spelling is often used to distinguish the metric ton from the English ton of avoirdupois pounds, and other tons.

By the original concept for defining masses in the metric system, a metric ton would be the mass of a cubic meter of water.

2

In Germany (Schleswig-Holstein), 20ᵗʰ century, a unit of land area, approximately 5,466 square meters.

United Nations, 1966.

3

In Paraguay, a unit of mass, 918 kilograms.

United Nations, 1966.

4

In Germany, various units of liquid capacity. Hamburg, 1820: