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Inquiry in Irish (Fiosrú): Meaning, Pronunciation, Usage

The Irish for inquiry is fiosrú, a masculine noun (plural fiosruithe). Ag fiosrú is inquiring, from the verb fiosraigh.
Updated October 2026Report a mistake

How to say “inquiry” in Irish

Irish:
fiosrú
English:
inquiry
Word type:
noun (verbal noun)
Verbal noun of:
fiosraigh, to inquire (ag fiosrú, inquiring)
Gender:
masculine
Pronunciation:
“FIS-roo”  /ˈfʲɪsˠɾˠuː/
Various forms
Plural:
fiosruithe (inquiries)
Genitive singular:
fiosraithe, an fhiosraithe (e.g. toradh an fhiosraithe, the result of the inquiry)
Genitive plural:
fiosruithe, na bhfiosruithe (e.g. líon na bhfiosruithe, the number of inquiries)

What does “fiosrú” mean?

inquiry
The act of asking about or investigating something; the verbal noun of the verb fiosraigh.Also: enquiry, inquiring, investigation, asking.

Other Irish words for inquiry: fiosrúchán (enquiry), imscrúdú (investigation), fiafraí (asking)

“Fiosrú” as a verbal noun

After ag, fiosrú means inquiring: it is the verbal noun of the verb fiosraigh (to inquire). A noun that follows it goes into the genitive.

agat
+
fiosrúverbal noun
=
ag fiosrúinquiring

“Fiosrú” with the article

The plural of inquiry in Irish is fiosruithe. Here is fiosrú after the article (an t-alt), in the singular and the plural.

an fiosrú
the inquiry
No change after an
na fiosruithe
the inquiries
Plural: no change after na

“Fiosrú” in a sentence: Irish examples

Common Irish sentences using fiosrú, the Irish word for inquiry.

Beidh fiosrú ann faoin timpiste.
There will be an inquiry into the accident.
Thosaigh an fiosrú inné.
The inquiry started yesterday.
Foilsíodh tuarascáil an fhiosraithe ar maidin.
The inquiry's report was published this morning.
Fuair an oifig go leor fiosruithe inniu.
The office got a lot of inquiries today.
Rinne mé fiosrú faoin bpost inné.
I made an inquiry about the job yesterday.
Ghlac sí páirt san fhiosrú poiblí.
She took part in the public inquiry.
Tá na gardaí i mbun fiosraithe.
The guards are carrying out an investigation.

Other nouns in Irish

More everyday Irish nouns to learn next.

Inquiry in Irish: frequently asked questions

What is the Irish for inquiry?

The Irish for inquiry is fiosrú (pronounced “FIS-roo”). It’s a masculine noun and the plural is fiosruithe.

How do you pronounce fiosrú in Irish?

Fiosrú is said like “FIS-roo” (IPA /ˈfʲɪsˠɾˠuː/).

What is the plural of inquiry in Irish?

The plural of fiosrú is fiosruithe; with the article, na fiosruithe means “the inquiries”. The genitive plural is fiosruithe, as in líon na bhfiosruithe (the number of inquiries).

Why does fiosrú change to fhiosrú or bhfiosrú?

Irish changes the start of some words after certain words. After mo (my) fiosrú becomes m'fhiosrú (lenition), and after ár (our) or i (in) it becomes ár bhfiosrú (eclipsis).

What is the difference between fiosrú and imscrúdú?

Fiosrú is an inquiry or asking about something, while imscrúdú is a more thorough investigation or examination, though they often overlap.

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