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Regulation in Irish (Rialachán): Meaning, Pronunciation, Usage

‘rialachán’ also means: regulating

The Irish for regulation is rialachán, a masculine noun (plural rialacháin).
Updated October 2026Report a mistake

How to say “regulation” in Irish

Irish:
rialachán
English:
regulation, regulating
Word type:
noun
Gender:
masculine, first declension
Pronunciation:
“REE-uh-luh-khawn”  /ˈɾʲiəl̪ˠəxaːn̪ˠ/
Various forms
Plural:
rialacháin (regulations)
Genitive singular:
rialacháin, an rialacháin (e.g. téacs an rialacháin, the text of the regulation)
Genitive plural:
rialachán, na rialachán (e.g. forálacha na rialachán, the provisions of the regulations)

What does “rialachán” mean?

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

regulation
An official rule made by an authority, such as a government or the European Union, that must be obeyed.Also: rule, statutory rule, ordinance.
1 other meaning: regulating
2regulating
The act or process of controlling something by rules.Also: regulation, control.

Other Irish words for regulation: riail (rule), rialú (control)

“Rialachán” with the article

The plural of regulation in Irish is rialacháin. Here is rialachán after the article (an t-alt), in the singular and the plural.

an rialachán
the regulation
No change after an
na rialacháin
the regulations
Plural: no change after na

“Rialachán” in a sentence: Irish examples

Common Irish sentences using rialachán, the Irish word for regulation.

Tháinig rialachán nua i bhfeidhm inniu.
A new regulation came into force today.
Níor léigh mé an rialachán fós.
I haven't read the regulation yet.
Tá na rialacháin sláinte agus sábháilteachta an-dian.
The health and safety regulations are very strict.
Cén aidhm atá leis an rialachán seo?
What is the aim of this regulation?
Sháraigh an comhlacht na rialacháin.
The company broke the regulations.
Tá an t-eolas sin sa rialachán.
That information is in the regulation.
Foilsíodh leagan Gaeilge an rialacháin ar líne.
The Irish version of the regulation was published online.

Other nouns in Irish

More everyday Irish nouns to learn next.

Regulation in Irish: frequently asked questions

What is the Irish for regulation?

The Irish for regulation is rialachán (pronounced “REE-uh-luh-khawn”). It’s a masculine noun and the plural is rialacháin. Depending on context it can also mean regulating.

How do you pronounce rialachán in Irish?

Rialachán is said like “REE-uh-luh-khawn” (IPA /ˈɾʲiəl̪ˠəxaːn̪ˠ/).

What is the plural of regulation in Irish?

The plural of rialachán is rialacháin; with the article, na rialacháin means “the regulations”. The genitive plural is rialachán, as in forálacha na rialachán (the provisions of the regulations).

Does rialachán have more than one meaning?

Yes. Rialachán can mean regulation or regulating, depending on context; the first is the most common.

What is the difference between rialachán and riail?

Riail is a general rule (rialacha na scoile, the school rules), while rialachán is a formal legal regulation issued by an authority.

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