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Cube in Irish (Ciúb): Meaning, Pronunciation, Usage

‘ciúb’ also means: cube (power)

The Irish for cube is ciúb, a masculine noun (plural ciúbanna).
Updated October 2026Report a mistake

How to say “cube” in Irish

Irish:
ciúb
English:
cube, cube (power)
Word type:
noun
Gender:
masculine, first declension
Pronunciation:
“kyoob”  /cuːbˠ/
Various forms
Plural:
ciúbanna (cubes)
Genitive singular:
ciúib, an chiúib (e.g. toirt an chiúib, the volume of the cube)
Genitive plural:
ciúbanna, na gciúbanna (e.g. cruachadh na gciúbanna, the stacking of the cubes)

What does “ciúb” mean?

“Ciúb” has two alternative meanings. The most common comes first.

cube
A solid shape with six equal square faces.Also: solid shape, block.
1 other meaning: cube (power)
2cube (power)
The number got by multiplying a number by itself twice, the third power.Also: cube, third power, cubed number.

“Ciúb” with the article

The plural of cube in Irish is ciúbanna. Here is ciúb after the article (an t-alt), in the singular and the plural.

an ciúb
the cube
No change after an
na ciúbanna
the cubes
Plural: no change after na

“Ciúb” in a sentence: Irish examples

Common Irish sentences using ciúb, the Irish word for cube.

Tá sé shlios chothroma ar chiúb.
A cube has six equal faces.
Tharraing an múinteoir ciúb ar an gclár bán.
The teacher drew a cube on the whiteboard.
Cad é toirt an chiúib seo?
What is the volume of this cube?
Chuir sí dhá chiúb oighir ina deoch.
She put two ice cubes in her drink.
Thóg na páistí túr as ciúbanna adhmaid.
The children built a tower out of wooden cubes.
Is é ocht an ciúb de dhó.
Eight is the cube of two.
Cheannaigh sé ciúb Rubik dá mhac.
He bought a Rubik's cube for his son.

Other nouns in Irish

More everyday Irish nouns to learn next.

Cube in Irish: frequently asked questions

What is the Irish for cube?

The Irish for cube is ciúb (pronounced “kyoob”). It’s a masculine noun and the plural is ciúbanna. Depending on context it can also mean cube (power).

How do you pronounce ciúb in Irish?

Ciúb is said like “kyoob” (IPA /cuːbˠ/).

What is the plural of cube in Irish?

The plural of ciúb is ciúbanna; with the article, na ciúbanna means “the cubes”. The genitive plural is ciúbanna, as in cruachadh na gciúbanna (the stacking of the cubes).

Does ciúb have more than one meaning?

Yes. Ciúb can mean cube or cube (power), depending on context; the first is the most common.

Why does ciúb change to chiúb or gciúb?

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

How do I say 'ice cube' in Irish?

Say 'ciúb oighir', literally 'cube of ice'.

What is the adjective from 'ciúb'?

The adjective is 'ciúbach', as in 'méadar ciúbach' (cubic metre).

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