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teach

house

NounMasculineA1/tʲax/

"teach" means "house" in Irish (masculine noun). Pronounced /tʲax/. Mutation forms: Séimhiú → theach, Urú → dteach.

Mutation forms

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

MutationForm
Base formteach
Séimhiútheach
Urúdteach

When does "teach" mutate?

mo— my (possessive, triggers séimhiú)

teach→mo theach(my house)

sa— in the (triggers séimhiú)

teach→sa theach(in the house)

ár— our (triggers urú)

teach→ár dteach(our house)

bhur— your (plural, triggers urú)

teach→bhur dteach(your (pl.) house)

a— their (triggers urú)

teach→a dteach(their house)

trí— three (triggers séimhiú)

teach→trí theach(three houses)

cúig— five (triggers séimhiú)

teach→cúig theach(five houses)

thar— over/past (triggers séimhiú)

teach→thar theach(past a house)

den— of the (triggers séimhiú)

teach→den theach(of the house)

in aice— near (compound preposition, governs the genitive case (no mutation))

teach→in aice an tí(near the house)

(-sa/-se/-ne)— emphatic suffixes (no mutation themselves but occur in environments requiring séimhiú)

teach→mo theachsa(MY house (emphatic))

"teach" in context

Tá cónaí orm sa teach a thóg m’athair.

I live in the house my father built.

B1

Cheannaigh siad teach i gConamara anuraidh.

They bought a house in Connemara last year.

A2

Cheannaigh siad teach anuraidh san áit a rachaidh muid ar saoire.

They bought a house last year in the place where we’re going on vacation.

A2

Cé atá ina chónaí sa teach sin?

Who lives in that house?

B2

Sin é an teach a bhfanaim ann.

That is the house that I stay in.

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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