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Perfect square in Irish (Slánchearnóg): Meaning, Pronunciation, Usage

The Irish for perfect square is slánchearnóg, a feminine noun (plural slánchearnóga).
Updated October 2026Report a mistake

How to say “perfect square” in Irish

Irish:
slánchearnóg
English:
perfect square
Word type:
noun
Gender:
feminine
Pronunciation:
“SLAWN-khar-nohg”  /ˈsˠl̪ˠaːnˌxaɾˠn̪ˠoːɡ/
Various forms
Plural:
slánchearnóga (perfect squares)
Genitive singular:
slánchearnóige, na slánchearnóige (e.g. fréamh na slánchearnóige, the root of the perfect square)
Genitive plural:
slánchearnóg, na slánchearnóg (e.g. liosta na slánchearnóg, the list of perfect squares)

What does “slánchearnóg” mean?

perfect square
In mathematics, a number that is the square of a whole number, such as 4, 9 or 16.Also: square number, square.

“Slánchearnóg” with the article

The plural of perfect square in Irish is slánchearnóga. Here is slánchearnóg after the article (an t-alt), in the singular and the plural.

an tslánchearnóg
the perfect square
Feminine nouns take t before s after an
na slánchearnóga
the perfect squares
Plural: no change after na

“Slánchearnóg” in a sentence: Irish examples

Common Irish sentences using slánchearnóg, the Irish word for perfect square.

Is slánchearnóg é naoi.
Nine is a perfect square.
Ní slánchearnóg í an uimhir sin.
That number is not a perfect square.
Aimsigh fréamh chearnach na slánchearnóige seo.
Find the square root of this perfect square.
Scríobh síos na slánchearnóga idir a haon agus céad.
Write down the perfect squares between one and a hundred.
Tá deich slánchearnóg faoi bhun céad a haon.
There are ten perfect squares below one hundred and one.
Is é a haon an tslánchearnóg is lú.
The smallest perfect square is one.
D'fhoghlaimíomar faoi shlánchearnóga sa rang matamaitice.
We learned about perfect squares in maths class.

Other nouns in Irish

More everyday Irish nouns to learn next.

Perfect square in Irish: frequently asked questions

What is the Irish for perfect square?

The Irish for perfect square is slánchearnóg (pronounced “SLAWN-khar-nohg”). It’s a feminine noun and the plural is slánchearnóga.

How do you pronounce slánchearnóg in Irish?

Slánchearnóg is said like “SLAWN-khar-nohg” (IPA /ˈsˠl̪ˠaːnˌxaɾˠn̪ˠoːɡ/).

What is the plural of perfect square in Irish?

The plural of slánchearnóg is slánchearnóga; with the article, na slánchearnóga means “the perfect squares”. The genitive plural is slánchearnóg, as in liosta na slánchearnóg (the list of perfect squares).

Why does slánchearnóg change to shlánchearnóg?

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

How is 'slánchearnóg' different from 'cearnóg'?

'Cearnóg' is a square in general (a shape, a town square, or a number squared), while 'slánchearnóg' specifically means a perfect square, the square of a whole number ('slánuimhir').

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