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Sinner in Irish (Peacach): Meaning, Pronunciation, Usage

‘peacach’ also means: sinful

The Irish for sinner is peacach, a masculine noun (plural peacaigh).
Updated October 2026Report a mistake

How to say “sinner” in Irish

Irish:
peacach
English:
sinner
Word type:
noun
Gender:
masculine, first declension
Pronunciation:
“PYAK-ukh”  /ˈpʲakəx/
Various forms
Plural:
peacaigh (sinners)
Genitive singular:
peacaigh, an pheacaigh (e.g. anam an pheacaigh, the soul of the sinner)
Genitive plural:
peacach, na bpeacach (e.g. paidir na bpeacach, the prayer of the sinners)

What does “peacach” mean?

sinner
A person who commits sins or does wrong, especially in a religious sense.Also: wrongdoer, transgressor.
Other entries for “peacach”

The same spelling has its own page as:

“Peacach” with the article

The plural of sinner in Irish is peacaigh. Here is peacach after the article (an t-alt), in the singular and the plural.

an peacach
the sinner
No change after an
na peacaigh
the sinners
Plural: no change after na

“Peacach” in a sentence: Irish examples

Common Irish sentences using peacach, the Irish word for sinner.

Is peacach mé, a Athair.
I am a sinner, Father.
D'iompaigh an peacach ar Dhia arís.
The sinner turned back to God.
Ghuigh an sagart ar son an pheacaigh.
The priest prayed for the sinner.
Is peacaigh sinn go léir.
We are all sinners.
Déanann Dia trócaire ar na peacaigh.
God shows mercy to sinners.
Guigh orainn, na peacaigh, anois.
Pray for us sinners now.
Ní naomh é, ach ní peacach mór é ach oiread.
He's no saint, but he's no great sinner either.

Other nouns in Irish

More everyday Irish nouns to learn next.

Sinner in Irish: frequently asked questions

What is the Irish for sinner?

The Irish for sinner is peacach (pronounced “PYAK-ukh”). It’s a masculine noun and the plural is peacaigh.

How do you pronounce peacach in Irish?

Peacach is said like “PYAK-ukh” (IPA /ˈpʲakəx/).

What is the plural of sinner in Irish?

The plural of peacach is peacaigh; with the article, na peacaigh means “the sinners”. The genitive plural is peacach, as in paidir na bpeacach (the prayer of the sinners).

Does peacach have more than one meaning?

Peacach also has its own entry as an adjective meaning sinful.

Why does peacach change to pheacach or bpeacach?

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

What is the difference between 'peacach' and 'peaca'?

'Peaca' is the sin itself, while 'peacach' is the person who sins, a sinner.

Where does a learner hear 'peacach' most often?

In prayers, especially the Hail Mary: 'guigh orainn na peacaigh', pray for us sinners.

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