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cois

all cases dual

NounMasculineB1/kɞʃ/

"cois" means "all cases dual" in Irish (masculine noun). Pronounced /kɞʃ/. Mutation forms: Séimhiú → chois, Urú → gcois.

Mutation forms

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

MutationForm
Base formcois
Séimhiúchois
Urúgcois

"cois" in context

Níor chas, ach tá neart daoine as Cois Fharraige fós ann.

I didn't meet her, but there are plenty of people from Cois Fharraige still there.

B1

Tá mé i mo chónaí cois farraige.

I live beside the sea.

A1

Tá sé cois farraige ach gar don chathair freisin.

It's beside the sea but close to the city as well.

A2

Tá sé san eastát nua sin ar imeall an bhaile: Cois Abhann.

It's in that new estate on the edge of town: Riverside.

B1

Agus le cois sin, dá mba bhuama é, cén fáth nár pléascadh gach taobh, seachas an dá thaobh amháin?

And in addition to that, if it was a bomb, why didn't all sides explode, instead of just the two sides?

C1

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

aon

one

céad

hundred

roinn

some

ábhar

some

beirt

two (people)

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