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a seacht

seven (7)

numeralA1

"a seacht" means "seven (7)" in Irish (numeral). Mutation forms: Urú → n-a seacht, Réamhlitir h → ha seacht, Réamhlitir t → t-a seacht.

Mutation forms

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

MutationForm
Base forma seacht
Urún-a seacht
Réamhlitir hha seacht
Réamhlitir tt-a seacht

"a seacht" in context

Tá sé a seacht a chlog.

It's seven o'clock.

A2

Fuair muid bricfeasta ag a seacht a chlog.

We ate breakfast at seven.

B1

Glaofaidh mé ort ag a seacht.

I'll call you at seven.

A2

A haon, a dó, a trí, a ceathair, a cúig, a sé, a seacht, a hocht, a naoi, a deich.

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

B2

Tá muid ag súil leis an traein ag a seacht a chlog.

We expect the train at seven o'clock.

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

a haon

one (1)

a dó

two (2)

a trí

three (3)

a ceathair

four (4)

a cúig

five (5)

a sé

six (6)

a hocht

eight (8)

a naoi

nine (9)

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