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Functioning in Irish (Feidhmiú): Meaning, Pronunciation, Usage

‘feidhmiú’ also means: implementation

The Irish for functioning is feidhmiú, a masculine noun. Ag feidhmiú is functioning, from the verb feidhmigh.
Updated October 2026Report a mistake

How to say “functioning” in Irish

Irish:
feidhmiú
English:
functioning, implementation
Word type:
noun (verbal noun)
Verbal noun of:
feidhmigh, to function (ag feidhmiú, functioning)
Gender:
masculine, fourth declension
Pronunciation:
“FAY-voo”  /ˈfʲeːvʲuː/
Various forms
Genitive singular:
feidhmithe, an fheidhmithe (e.g. le linn an fheidhmithe, during the functioning)

What does “feidhmiú” mean?

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

functioning
The verbal noun of the verb feidhmigh: the act of working, operating or performing a function.Also: operation, working, performance.
1 other meaning: implementation
2implementation
The putting into effect or application of a law, plan, rule or power.Also: application, exercise, enforcement.

“Feidhmiú” as a verbal noun

After ag, feidhmiú means functioning: it is the verbal noun of the verb feidhmigh (to function). A noun that follows it goes into the genitive.

agat
+
feidhmiúverbal noun
=
ag feidhmiúfunctioning

“Feidhmiú” with the article

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

an feidhmiú
the functioning
No change after an

“Feidhmiú” in a sentence: Irish examples

Common Irish sentences using feidhmiú, the Irish word for functioning.

Tá feidhmiú an chórais ag dul i bhfeabhas.
The functioning of the system is improving.
Cuirfear tús le feidhmiú an phlean an bhliain seo chugainn.
Implementation of the plan will begin next year.
Bhí fadhb ann le feidhmiú an innill.
There was a problem with the engine's operation.
Is é an rialtas atá freagrach as feidhmiú an dlí.
The government is responsible for implementing the law.
Tá costais feidhmithe na scoile ag ardú.
The school's running costs are rising.
Bíonn deacrachtaí i gcónaí san fheidhmiú.
There are always difficulties in the implementation.
Níl aon locht ar fheidhmiú an chláir.
There is nothing wrong with the running of the programme.

Other nouns in Irish

More everyday Irish nouns to learn next.

Functioning in Irish: frequently asked questions

What is the Irish for functioning?

The Irish for functioning is feidhmiú (pronounced “FAY-voo”). It’s a masculine noun. Depending on context it can also mean implementation.

How do you pronounce feidhmiú in Irish?

Feidhmiú is said like “FAY-voo” (IPA /ˈfʲeːvʲuː/).

Does feidhmiú have a plural?

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

Does feidhmiú have more than one meaning?

Yes. Feidhmiú can mean functioning or implementation, depending on context; the first is the most common.

Why does feidhmiú change to fheidhmiú or bhfeidhmiú?

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

How is feidhmiú different from feidhm?

Feidhm means function or use, as in 'i bhfeidhm' (in force), while feidhmiú is the action of functioning or implementing, as in 'feidhmiú an achta' (the implementation of the act).

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