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Fraction in Irish (Codán): Meaning, Pronunciation, Usage

‘codán’ also means: portion

The Irish for fraction is codán, a masculine noun (plural codáin).
Updated October 2026Report a mistake

How to say “fraction” in Irish

Irish:
codán
English:
fraction, portion
Word type:
noun
Gender:
masculine, first declension
Pronunciation:
“kuh-DAWN”  /kəˈd̪ˠɑːnˠ/
Various forms
Plural:
codáin (fractions)
Genitive singular:
codáin, an chodáin (e.g. uimhreoir an chodáin, the numerator of the fraction)
Genitive plural:
codán, na gcodán (e.g. suimiú codán, adding fractions)

What does “codán” mean?

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

fraction
In mathematics, a number that represents part of a whole, such as a half or three quarters.Also: fractional number, vulgar fraction.
1 other meaning: portion
2portion
A small part or share of something.Also: part, fragment, share.

“Codán” with the article

The plural of fraction in Irish is codáin. Here is codán after the article (an t-alt), in the singular and the plural.

an codán
the fraction
No change after an
na codáin
the fractions
Plural: no change after na

“Codán” in a sentence: Irish examples

Common Irish sentences using codán, the Irish word for fraction.

Is codán í leath.
A half is a fraction.
Scríobh an codán ar an gclár bán.
Write the fraction on the whiteboard.
Táimid ag foghlaim faoi chodáin ar scoil.
We are learning about fractions at school.
Simpligh an codán seo, le do thoil.
Simplify this fraction, please.
Cad é ainmneoir an chodáin sin?
What is the denominator of that fraction?
Bhí botún sa chodán deireanach.
There was a mistake in the last fraction.
Is fuath le mo dheartháir obair le codáin.
My brother hates working with fractions.

Other nouns in Irish

More everyday Irish nouns to learn next.

Fraction in Irish: frequently asked questions

What is the Irish for fraction?

The Irish for fraction is codán (pronounced “kuh-DAWN”). It’s a masculine noun and the plural is codáin. Depending on context it can also mean portion.

How do you pronounce codán in Irish?

Codán is said like “kuh-DAWN” (IPA /kəˈd̪ˠɑːnˠ/).

What is the plural of fraction in Irish?

The plural of codán is codáin; with the article, na codáin means “the fractions”. The genitive plural is codán, as in suimiú codán (adding fractions).

Does codán have more than one meaning?

Yes. Codán can mean fraction or portion, depending on context; the first is the most common.

Why does codán change to chodán or gcodán?

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

What is the difference between 'codán' and 'cuid'?

'Cuid' is the everyday word for a part or share, while 'codán' is mainly the mathematical term for a fraction, as in 'codán deachúlach'.

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