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Alternation in Irish (Ailtéarnú): Meaning, Pronunciation, Usage

The Irish for alternation is ailtéarnú, a masculine noun. Ag ailtéarnú is alternating, from the verb ailtéarnaigh.
Updated October 2026Report a mistake

How to say “alternation” in Irish

Irish:
ailtéarnú
English:
alternation
Word type:
noun (verbal noun)
Verbal noun of:
ailtéarnaigh, to alternate (ag ailtéarnú, alternating)
Gender:
masculine
Pronunciation:
“AL-tchayr-noo”  /ˈalʲtʲeːrˠn̪ˠuː/
Various forms
Genitive singular:
ailtéarnaithe, an ailtéarnaithe (e.g. próiseas an ailtéarnaithe, the process of alternation)

What does “ailtéarnú” mean?

alternation
The act of alternating, or the fact of things taking turns or changing back and forth; it is the verbal noun of the verb ailtéarnaigh.Also: alternating, taking turns, changing back and forth.

“Ailtéarnú” as a verbal noun

After ag, ailtéarnú means alternating: it is the verbal noun of the verb ailtéarnaigh (to alternate). A noun that follows it goes into the genitive.

agat
+
ailtéarnúverbal noun
=
ag ailtéarnúalternating

“Ailtéarnú” with the article

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

an t-ailtéarnú
the alternation
Masculine nouns take t before a vowel after an

“Ailtéarnú” in a sentence: Irish examples

Common Irish sentences using ailtéarnú, the Irish word for alternation.

Is cuid den phlean é ailtéarnú na mbarr.
Alternating the crops is part of the plan.
Tá an t-ailtéarnú idir lá agus oíche rialta.
The alternation between day and night is regular.
Feicimid ailtéarnú consan sa teanga seo.
We see consonant alternation in this language.
Bhí ráta an ailtéarnaithe róthapa.
The rate of alternation was too fast.
Is éard atá i gceist ná ailtéarnú dhá chéim.
What is involved is the alternation of two stages.
Mhínigh an múinteoir an t-ailtéarnú go soiléir.
The teacher explained the alternation clearly.
Tá ailtéarnú sa sruth leictreach sin.
There is alternation in that electric current.

Other nouns in Irish

More everyday Irish nouns to learn next.

Alternation in Irish: frequently asked questions

What is the Irish for alternation?

The Irish for alternation is ailtéarnú (pronounced “AL-tchayr-noo”). It’s a masculine noun.

How do you pronounce ailtéarnú in Irish?

Ailtéarnú is said like “AL-tchayr-noo” (IPA /ˈalʲtʲeːrˠn̪ˠuː/).

Does ailtéarnú have a plural?

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

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

Irish nouns beginning with a vowel take a prefix after certain words: an t-ailtéarnú (the alternation), a hailtéarnú (her alternation), a n-ailtéarnú (their alternation).

Is ailtéarnú the usual word for taking turns?

No, in everyday speech people say sealaíocht or uainíocht for taking turns; ailtéarnú is more technical, used in science or linguistics.

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