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Confirmation in Irish (Cinntiú): Meaning, Pronunciation, Usage

‘cinntiú’ also means: determination · delimitation

The Irish for confirmation is cinntiú, a masculine noun. Ag cinntiú is making sure, from the verb cinntigh.
Updated October 2026Report a mistake

How to say “confirmation” in Irish

Irish:
cinntiú
English:
confirmation, determination, delimitation
Word type:
noun (verbal noun)
Verbal noun of:
cinntigh, to make sure (ag cinntiú, making sure)
Gender:
masculine, fourth declension
Pronunciation:
“KIN-tyoo”  /ˈcin̠ʲtʲuː/
Various forms
Genitive singular:
cinntithe, an chinntithe (e.g. litir chinntithe, letter of confirmation)

What does “cinntiú” mean?

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

confirmation
The act of making sure of something or confirming it; verbal noun of the verb cinntigh.Also: ensuring, making sure, verification.
2 other meanings: determination or delimitation
2determination
The act of deciding or fixing something definitely, such as a date or amount; verbal noun of cinntigh.Also: deciding, fixing, settling.
3delimitation
The act of setting the limits or boundaries of something.Also: defining, limiting.

Other Irish words for confirmation: deimhniú (confirmation), cóineartú (confirmation)

“Cinntiú” as a verbal noun

After ag, cinntiú means making sure: it is the verbal noun of the verb cinntigh (to make sure). A noun that follows it goes into the genitive.

agat
+
cinntiúverbal noun
=
ag cinntiúmaking sure

“Cinntiú” with the article

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

an cinntiú
the confirmation
No change after an

“Cinntiú” in a sentence: Irish examples

Common Irish sentences using cinntiú, the Irish word for confirmation.

Fuair mé cinntiú ón óstán inné.
I got confirmation from the hotel yesterday.
Táimid ag fanacht ar chinntiú an dáta.
We are waiting for the date to be confirmed.
Seol ríomhphost cinntithe chuig gach duine.
Send a confirmation email to everyone.
Chuir siad cinntiú chugam inniu.
They sent me confirmation today.
Ní bhfuair sí aon chinntiú fós.
She hasn't received any confirmation yet.
Táim ag fanacht ar chinntiú ón aerlíne.
I'm waiting for confirmation from the airline.
Tá uimhir chinntithe ar an ticéad.
There is a confirmation number on the ticket.

Other nouns in Irish

More everyday Irish nouns to learn next.

Confirmation in Irish: frequently asked questions

What is the Irish for confirmation?

The Irish for confirmation is cinntiú (pronounced “KIN-tyoo”). It’s a masculine noun. Depending on context it can also mean determination or delimitation.

How do you pronounce cinntiú in Irish?

Cinntiú is said like “KIN-tyoo” (IPA /ˈcin̠ʲtʲuː/).

Does cinntiú have a plural?

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

Does cinntiú have more than one meaning?

Yes. Cinntiú can mean confirmation, determination or delimitation, depending on context; the first is the most common.

Why does cinntiú change to chinntiú or gcinntiú?

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

What is the difference between cinntiú and deimhniú?

Both can mean confirmation; deimhniú is often used for official certification or Confirmation in church, while cinntiú stresses making sure or fixing something definitely.

How do I say 'make sure that' with this word?

Use the verb: cinntigh go bhfuil an doras dúnta, 'make sure the door is closed'; the noun phrase is ag cinntiú go.

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