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fios

knowledge

NounMasculineA1/fʲɨsˠ/

"fios" means "knowledge" in Irish (masculine noun). Pronounced /fʲɨsˠ/. Mutation forms: Séimhiú → fhios, Urú → bhfios.

Mutation forms

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

MutationForm
Base formfios
Séimhiúfhios
Urúbhfios

"fios" in context

An bhfuil fios an bhealaigh agat?

Do you know the way?

A2

Níl fios a ngnó acu.

They don't understand their own business. They don't know what they are doing.

B1

Tá fios an bhealaigh agam.

I know the way, lit. I have knowledge of the way.

A2

Má theip orthu, ní fios cén fáth.

If they failed, it is not known why.

B1

Thug an Príomh-Aire le fios do na meáin go raibh sé ar tí éirí as.

The Prime Minister announced to the media that he was about to resign.

B1

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

muc

pig

scéal

story

scoil

shoal

ceist

question

alt

bit

cúrsa

course

eolas

knowledge

leabhar

book

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