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Effect in Irish (Éifeacht): Meaning, Pronunciation, Usage

‘éifeacht’ also means: force

The Irish for effect is éifeacht, a feminine noun.
Updated October 2026Report a mistake

How to say “effect” in Irish

Irish:
éifeacht
English:
effect, force
Word type:
noun
Gender:
feminine, third declension
Pronunciation:
“AY-fyakht”  /ˈeːfʲəxt̪ˠ/
Various forms
Genitive singular:
éifeachta, na héifeachta (e.g. méid na héifeachta, the extent of the effect)

What does “éifeacht” mean?

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

effect
The result or consequence that something has on something else.Also: result, consequence, impact.
1 other meaning: force
2force
Power, validity or significance, as in something having force or meaning.Also: efficacy, validity, significance, point.

“Éifeacht” with the article

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

an éifeacht
the effect
No change: feminine nouns starting with a vowel keep their form after an

“Éifeacht” in a sentence: Irish examples

Common Irish sentences using éifeacht, the Irish word for effect.

Bhí éifeacht mhór ag an leigheas air.
The medicine had a big effect on him.
Níl aon éifeacht leis an rud a dúirt sé.
There's no sense in what he said.
Tháinig an dlí i bhfeidhm le héifeacht láithreach.
The law came into force with immediate effect.
Ní fheicim éifeacht ar bith ón obair sin.
I don't see any effect from that work.
Labhair sí go cliste agus le héifeacht.
She spoke cleverly and to good effect.
Tá staidéar á dhéanamh ar mhéid na héifeachta.
The extent of the effect is being studied.
Bhí éifeacht mhaith ag an aclaíocht orm.
The exercise had a good effect on me.

Other nouns in Irish

More everyday Irish nouns to learn next.

Effect in Irish: frequently asked questions

What is the Irish for effect?

The Irish for effect is éifeacht (pronounced “AY-fyakht”). It’s a feminine noun. Depending on context it can also mean force.

How do you pronounce éifeacht in Irish?

Éifeacht is said like “AY-fyakht” (IPA /ˈeːfʲəxt̪ˠ/).

Does éifeacht have a plural?

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

Does éifeacht have more than one meaning?

Yes. Éifeacht can mean effect or force, depending on context; the first is the most common.

Why does éifeacht sometimes have a t or h in front of it?

Irish nouns beginning with a vowel take a prefix after certain words: an éifeacht (the effect), a héifeacht (her effect), a n-éifeacht (their effect).

What is the difference between 'éifeacht' and 'tionchar'?

'Éifeacht' is the effect or result something produces, while 'tionchar' is influence. You say 'éifeacht a bheith ag rud' for having an effect and 'tionchar a imirt ar' for influencing.

What does 'níl éifeacht leis' mean?

'Níl éifeacht leis' means there is no sense or point to it, using the force or significance sense of 'éifeacht'.

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