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cat

cat

NounMasculineB1/kɑt̪ˠ/

"cat" means "cat" in Irish (masculine noun). Pronounced /kɑt̪ˠ/. Mutation forms: Séimhiú → chat, Urú → gcat.

Mutation forms

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

MutationForm
Base formcat
Séimhiúchat
Urúgcat

When does "cat" mutate?

mo— my (possessive, triggers séimhiú)

cat→mo chat(my cat)

na— of the (genitive plural, triggers urú)

cat→na gcat(of the cats)

seacht— seven (triggers urú)

cat→seacht gcat(seven cats)

ocht— eight (triggers urú)

cat→ocht gcat(eight cats)

trí— three (triggers séimhiú)

cat→trí chat(three cats)

ceithre— four (triggers séimhiú)

cat→ceithre chat(four cats)

an— the (dative after simple prepositions, lenition in Munster/Connacht)

cat→ag an chat(at the cat (Munster))

"cat" in context

Tá an cat faoin mbord.

The cat is under the table.

B1

Tá an cat bán faoin gcrann.

The white cat is under the tree.

A2

Tá cat bán agam.

I have a white cat.

A1

Níl cat agam.

I don't have a cat.

B1

Is cat Thomáis é.

This is Tom's cat.

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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