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Ton in Irish (Tonna): Meaning, Pronunciation, Usage

The Irish for ton is tonna, a masculine noun (plural tonnaí).
Updated October 2026Report a mistake

How to say “ton” in Irish

Irish:
tonna
English:
ton
Word type:
noun
Gender:
masculine, fourth declension
Pronunciation:
“TUN-uh”  /ˈt̪ˠʊnˠə/
Various forms
Plural:
tonnaí (tons)
Genitive singular:
tonna, an tonna (e.g. leath an tonna, half the ton)
Genitive plural:
tonnaí, na dtonnaí (e.g. meáchan na dtonnaí, the weight of the tons)

What does “tonna” mean?

ton
A unit of weight, equal to 1,000 kilograms (metric tonne) or about 2,240 pounds.Also: tonne, metric ton.

Other Irish words for ton: tona (ton)

“Tonna” with the article

The plural of ton in Irish is tonnaí. Here is tonna after the article (an t-alt), in the singular and the plural.

an tonna
the ton
No change after an
na tonnaí
the tons
Plural: no change after na

“Tonna” in a sentence: Irish examples

Common Irish sentences using tonna, the Irish word for ton.

Cheannaíomar tonna guail don gheimhreadh.
We bought a ton of coal for the winter.
Tá deich dtonna meáchain sa leoraí sin.
That lorry weighs ten tons.
Díoladh an chruithneacht ar chéad euro an tonna.
The wheat sold for a hundred euro a ton.
Tugadh na mílte tonna éisc isteach sna Cealla Beaga.
Thousands of tons of fish were landed in Killybegs.
Cén praghas atá ar leath tonna gainimh?
What's the price of half a ton of sand?
Tá sé ag iompar tonna amháin go leith.
It's carrying one and a half tons.
Thug siad céad tonna bia isteach sa tír.
They brought a hundred tons of food into the country.

Other nouns in Irish

More everyday Irish nouns to learn next.

Ton in Irish: frequently asked questions

What is the Irish for ton?

The Irish for ton is tonna (pronounced “TUN-uh”). It’s a masculine noun and the plural is tonnaí.

How do you pronounce tonna in Irish?

Tonna is said like “TUN-uh” (IPA /ˈt̪ˠʊnˠə/).

What is the plural of ton in Irish?

The plural of tonna is tonnaí; with the article, na tonnaí means “the tons”. The genitive plural is tonnaí, as in meáchan na dtonnaí (the weight of the tons).

Why does tonna change to thonna or dtonna?

Irish changes the start of some words after certain words. After mo (my) tonna becomes mo thonna (lenition), and after ár (our) or i (in) it becomes ár dtonna (eclipsis).

Is 'tonna' the same as 'tonn' (a wave)?

No. 'Tonn' (feminine, genitive 'toinne', plural 'tonnta') means a wave, while 'tonna' is a ton in weight. Be careful because the plurals 'tonnta' and 'tonnaí' look similar.

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