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Thousandth in Irish (Míliú): Meaning, Pronunciation, Usage

The Irish for thousandth is míliú, a masculine noun (plural mílithe).
Updated October 2026Report a mistake

How to say “thousandth” in Irish

Irish:
míliú
English:
thousandth
Word type:
noun
Gender:
masculine
Pronunciation:
“MEE-loo”  /ˈmʲiːlʲuː/
Various forms
Plural:
mílithe (thousandths)
Genitive singular:
míliú, an mhíliú (e.g. leath an mhíliú, half of the thousandth)
Genitive plural:
mílithe, na mílithe (e.g. suim na mílithe, the sum of the thousandths)

What does “míliú” mean?

thousandth
One of a thousand equal parts of something, a fraction written 1/1000.Also: one thousandth, thousandth part.

“Míliú” with the article

The plural of thousandth in Irish is mílithe. Here is míliú after the article (an t-alt), in the singular and the plural.

an míliú
the thousandth
No change after an
na mílithe
the thousandths
Plural: no change after na

“Míliú” in a sentence: Irish examples

Common Irish sentences using míliú, the Irish word for thousandth.

Is ionann míliú agus náid pointe náid náid a haon.
A thousandth equals zero point zero zero one.
Ní raibh ann ach míliú den iomlán.
It was only a thousandth of the whole.
Roinn an t-aonad ina mhílithe.
Divide the unit into thousandths.
Tá trí mhíliú san uimhir seo.
There are three thousandths in this number.
Bhuaigh sí le míliú soicind.
She won by a thousandth of a second.
Scríobh an míliú mar chodán.
Write the thousandth as a fraction.
Is beag an difríocht í, míliú amháin.
It is a small difference, just one thousandth.

Other nouns in Irish

More everyday Irish nouns to learn next.

Thousandth in Irish: frequently asked questions

What is the Irish for thousandth?

The Irish for thousandth is míliú (pronounced “MEE-loo”). It’s a masculine noun and the plural is mílithe.

How do you pronounce míliú in Irish?

Míliú is said like “MEE-loo” (IPA /ˈmʲiːlʲuː/).

What is the plural of thousandth in Irish?

The plural of míliú is mílithe; with the article, na mílithe means “the thousandths”. The genitive plural is mílithe, as in suim na mílithe (the sum of the thousandths).

Why does míliú change to mhíliú?

After words like mo (my) and do (your) the first letter is lenited: mo mhíliú. After ár (our) it stays ár míliú, because m does not take eclipsis.

Is 'míliú' also used for 'thousandth' as an ordinal?

Yes: 'an míliú duine' means 'the thousandth person', while as a noun 'míliú' means the fraction one thousandth.

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