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Ban in Irish (Cosc): Meaning, Pronunciation, Usage

‘cosc’ also means: prevention · restraint

The Irish for ban is cosc, a masculine noun. Ag cosc is preventing, from the verb coisc.
Updated October 2026Report a mistake

How to say “ban” in Irish

Irish:
cosc
English:
ban, prevention, restraint
Word type:
noun (verbal noun)
Verbal noun of:
coisc, to prevent (ag cosc, preventing)
Gender:
masculine, first declension
Pronunciation:
“kusk”  /kɔsk/
Various forms
Genitive singular:
coisc, an choisc (e.g. sárú an choisc, breach of the ban)

What does “cosc” mean?

“Cosc” has three alternative meanings. The most common comes first.

ban
An official order that stops something from being done; used with 'ar': cosc ar rud.Also: prohibition, embargo, bar.
2 other meanings: prevention or restraint
2prevention
The act of preventing or stopping something; the verbal noun of the verb coisc.Also: preventing, stopping, checking.
3restraint
Something that holds back or restrains a person or thing.Also: check, hindrance.

“Cosc” as a verbal noun

After ag, cosc means preventing: it is the verbal noun of the verb coisc (to prevent). A noun that follows it goes into the genitive.

agat
+
coscverbal noun
=
ag coscpreventing

“Cosc” with the article

Here is cosc after the article (an t-alt).

an cosc
the ban
No change after an

“Cosc” in a sentence: Irish examples

Common Irish sentences using cosc, the Irish word for ban.

Cuireadh cosc ar chaitheamh tobac i dtithe tábhairne.
Smoking was banned in pubs.
Tá cosc ar pháirceáil anseo.
Parking is prohibited here.
Bhain an rialtas an cosc den iascaireacht.
The government lifted the fishing ban.
Tá dlí ann a chuireann cosc air seo.
There is a law that prohibits this.
Níor éirigh leis an gcosc na daoine a stopadh.
The ban did not succeed in stopping people.
Cuireadh cosc ar thinte a lasadh sa pháirc.
Lighting fires in the park was banned.
D'fhás an fhiaile gan chosc sa ghairdín.
The weeds grew unchecked in the garden.

Other nouns in Irish

More everyday Irish nouns to learn next.

Ban in Irish: frequently asked questions

What is the Irish for ban?

The Irish for ban is cosc (pronounced “kusk”). It’s a masculine noun. Depending on context it can also mean prevention or restraint.

How do you pronounce cosc in Irish?

Cosc is said like “kusk” (IPA /kɔsk/).

Does cosc have a plural?

No plural form is given for cosc in the standard. Many abstract and mass nouns in Irish have no plural.

Does cosc have more than one meaning?

Yes. Cosc can mean ban, prevention or restraint, depending on context; the first is the most common.

Why does cosc change to chosc or gcosc?

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

How do I say 'to ban something' in Irish?

Use 'cuir cosc ar': Cuireadh cosc ar thobac, 'tobacco was banned'. The preposition 'ar' lenites the following noun.

What is the difference between 'cosc' and 'toirmeasc'?

Both mean prohibition, but 'cosc' is the everyday word for a ban or prevention, while 'toirmeasc' is more formal and often used for an official interdict.

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