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Investigator in Irish (Fiosraitheoir): Meaning, Pronunciation, Usage

The Irish for investigator is fiosraitheoir, a masculine noun (plural fiosraitheoirí).
Updated October 2026Report a mistake

How to say “investigator” in Irish

Irish:
fiosraitheoir
English:
investigator
Word type:
noun
Gender:
masculine
Pronunciation:
“FISS-ree-hore”  /ˈfʲɪsˠɾˠiˌhoːɾʲ/
Various forms
Plural:
fiosraitheoirí (investigators)
Genitive singular:
fiosraitheora, an fhiosraitheora (e.g. tuarascáil an fhiosraitheora, the investigator's report)
Genitive plural:
fiosraitheoirí, na bhfiosraitheoirí (e.g. foireann na bhfiosraitheoirí, the team of investigators)

What does “fiosraitheoir” mean?

investigator
A person who inquires into or investigates something, such as an official looking into a complaint or incident.Also: inquirer, examiner, researcher.

Other Irish words for investigator: bleachtaire (detective)

“Fiosraitheoir” with the article

The plural of investigator in Irish is fiosraitheoirí. Here is fiosraitheoir after the article (an t-alt), in the singular and the plural.

an fiosraitheoir
the investigator
No change after an
na fiosraitheoirí
the investigators
Plural: no change after na

“Fiosraitheoir” in a sentence: Irish examples

Common Irish sentences using fiosraitheoir, the Irish word for investigator.

Tháinig fiosraitheoir chun labhairt linn inné.
An investigator came to talk to us yesterday.
Cheap an rialtas fiosraitheoir neamhspleách.
The government appointed an independent investigator.
Chuir an fiosraitheoir go leor ceisteanna orainn.
The investigator asked us a lot of questions.
Foilsíodh tuarascáil an fhiosraitheora ar maidin.
The investigator's report was published this morning.
Tá na fiosraitheoirí ag scrúdú na fianaise.
The investigators are examining the evidence.
Bhí mo dheartháir ina fhiosraitheoir árachais.
My brother was an insurance investigator.
Labhair sí leis na fiosraitheoirí faoin timpiste.
She spoke to the investigators about the accident.

Other nouns in Irish

More everyday Irish nouns to learn next.

Investigator in Irish: frequently asked questions

What is the Irish for investigator?

The Irish for investigator is fiosraitheoir (pronounced “FISS-ree-hore”). It’s a masculine noun and the plural is fiosraitheoirí.

How do you pronounce fiosraitheoir in Irish?

Fiosraitheoir is said like “FISS-ree-hore” (IPA /ˈfʲɪsˠɾˠiˌhoːɾʲ/).

What is the plural of investigator in Irish?

The plural of fiosraitheoir is fiosraitheoirí; with the article, na fiosraitheoirí means “the investigators”. The genitive plural is fiosraitheoirí, as in foireann na bhfiosraitheoirí (the team of investigators).

Why does fiosraitheoir change to fhiosraitheoir or bhfiosraitheoir?

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

How does 'fiosraitheoir' differ from 'bleachtaire'?

'Bleachtaire' is a detective, usually police, while 'fiosraitheoir' is a more general investigator or inquirer, for example one looking into a complaint. 'Imscrúdaitheoir' is also used for investigator.

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