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Fault in Irish (Fabht): Meaning, Pronunciation, Usage

‘fabht’ also means: weakness

The Irish for fault is fabht, a masculine noun (plural fabhtanna).
Updated October 2026Report a mistake

How to say “fault” in Irish

Irish:
fabht
English:
fault, weakness
Word type:
noun
Gender:
masculine, fourth declension
Pronunciation:
“fowt”  /fˠəuːt̪ˠ/
Various forms
Plural:
fabhtanna (faults)
Genitive singular:
fabht, an fhabht (e.g. cúis an fhabht, the cause of the fault)
Genitive plural:
fabhtanna, na bhfabhtanna (e.g. liosta na bhfabhtanna, the list of faults)

What does “fabht” mean?

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

fault
A flaw or defect in something, often one that is hidden or not obvious.Also: flaw, defect, hidden defect, bug.
1 other meaning: weakness
2weakness
A weakness or failing in a person's character or constitution.Also: failing, shortcoming, unsoundness.

Other Irish words for fault: milleán (blame), locht (fault)

“Fabht” with the article

The plural of fault in Irish is fabhtanna. Here is fabht after the article (an t-alt), in the singular and the plural.

an fabht
the fault
No change after an
na fabhtanna
the faults
Plural: no change after na

“Fabht” in a sentence: Irish examples

Common Irish sentences using fabht, the Irish word for fault.

Tá fabht san inneall seo.
There's a fault in this engine.
Níor aimsigh siad an fabht fós.
They haven't found the fault yet.
Bhí fabhtanna sa bhogearra nua.
There were bugs in the new software.
Is é an fabht is mó atá air ná leisce.
His biggest failing is laziness.
Ní raibh aon fhabht ar an gcarr.
There was nothing wrong with the car.
Chuir sé fios ar leictreoir mar gheall ar an bhfabht.
He called an electrician because of the fault.
Cheartaigh an t-innealtóir na fabhtanna go léir.
The engineer fixed all the faults.

Other nouns in Irish

More everyday Irish nouns to learn next.

Fault in Irish: frequently asked questions

What is the Irish for fault?

The Irish for fault is fabht (pronounced “fowt”). It’s a masculine noun and the plural is fabhtanna. Depending on context it can also mean weakness.

How do you pronounce fabht in Irish?

Fabht is said like “fowt” (IPA /fˠəuːt̪ˠ/).

What is the plural of fault in Irish?

The plural of fabht is fabhtanna; with the article, na fabhtanna means “the faults”. The genitive plural is fabhtanna, as in liosta na bhfabhtanna (the list of faults).

Does fabht have more than one meaning?

Yes. Fabht can mean fault or weakness, depending on context; the first is the most common.

Why does fabht change to fhabht or bhfabht?

Irish changes the start of some words after certain words. After mo (my) fabht becomes m'fhabht (lenition), and after ár (our) or i (in) it becomes ár bhfabht (eclipsis).

What is the difference between 'fabht' and 'locht'?

'Locht' is the general word for a fault or blame, while 'fabht' suggests a flaw or defect, often hidden, in a thing or a person. You blame someone with 'locht', not 'fabht'.

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