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aon

one

NounMasculineA1

"aon" means "one" in Irish (masculine noun). Mutation forms: Urú → n-aon, Réamhlitir h → haon, Réamhlitir t → t-aon.

Mutation forms

In Irish, the first letter of "aon" changes depending on the grammatical context. These are the mutated forms:

MutationForm
Base formaon
Urún-aon
Réamhlitir hhaon
Réamhlitir tt-aon

"aon" in context

An bhfuil aon rud a ól sa chuisneoir?

Is there anything to drink in the refrigerator?

B1

Níor gortaíodh aon duine eile.

No one else was injured.

A1

Níl aon tinteán mar do thinteán féin.

There's no place like home.

B1

Aon, dó, trí, ceathair, cúig, sé, seacht, ocht, naoi, deich.

One, two, three, four, five, six, seven, eight, nine, ten.

B1

Is féidir le aon leanbh sin a dhéanamh.

Any child can do that.

A2

Further reading

Irish Mutations: Complete Guide to Séimhiú and Urú →Irish Pronunciation, The System Behind the Spelling →How to Learn Irish as an Adult, A Step-by-Step Roadmap →Best Irish Learning App 2026 →Browse all Irish vocabulary →

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Related Irish words

ceann

end

duine

one

méid

amount

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hundred

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some

ábhar

some

beirt

two (people)

contae

county

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