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Expert in Irish (Saineolaí): Meaning, Pronunciation, Usage

The Irish for expert is saineolaí, a masculine noun (plural saineolaithe).
Updated October 2026Report a mistake

How to say “expert” in Irish

Irish:
saineolaí
English:
expert
Word type:
noun
Gender:
masculine, fourth declension
Pronunciation:
“SAN-yoh-lee”  /ˈsanʲoːl̪ˠiː/
Various forms
Plural:
saineolaithe (experts)
Genitive singular:
saineolaí, an tsaineolaí (e.g. tuairim an tsaineolaí, the expert's opinion)
Genitive plural:
saineolaithe, na saineolaithe (e.g. comhairle na saineolaithe, the advice of the experts)

What does “saineolaí” mean?

expert
A person with special knowledge or skill in a particular subject or field.Also: specialist, authority, connoisseur.

Other Irish words for expert: speisialtóir (specialist), saineolach (expert)

“Saineolaí” with the article

The plural of expert in Irish is saineolaithe. Here is saineolaí after the article (an t-alt), in the singular and the plural.

an saineolaí
the expert
No change after an
na saineolaithe
the experts
Plural: no change after na

“Saineolaí” in a sentence: Irish examples

Common Irish sentences using saineolaí, the Irish word for expert.

Is saineolaí í ar chúrsaí staitistice.
She's an expert on statistics.
Ní fíor an teoiric, dar leis na saineolaithe.
The theory is wrong, according to the experts.
Labhair an saineolaí ar an raidió ar maidin.
The expert spoke on the radio this morning.
Ba cheart duit tuairim saineolaí a fháil.
You should get an expert's opinion.
Níl mé i mo shaineolaí ar an ábhar sin.
I'm no expert on that subject.
Léigh mé tuarascáil an tsaineolaí inné.
I read the expert's report yesterday.
Tháinig saineolaithe ón iasacht chun an droichead a scrúdú.
Experts came from abroad to examine the bridge.

Other nouns in Irish

More everyday Irish nouns to learn next.

Expert in Irish: frequently asked questions

What is the Irish for expert?

The Irish for expert is saineolaí (pronounced “SAN-yoh-lee”). It’s a masculine noun and the plural is saineolaithe.

How do you pronounce saineolaí in Irish?

Saineolaí is said like “SAN-yoh-lee” (IPA /ˈsanʲoːl̪ˠiː/).

What is the plural of expert in Irish?

The plural of saineolaí is saineolaithe; with the article, na saineolaithe means “the experts”. The genitive plural is saineolaithe, as in comhairle na saineolaithe (the advice of the experts).

Why does saineolaí change to shaineolaí?

After words like mo (my) and do (your) the first letter is lenited: mo shaineolaí. After ár (our) it stays ár saineolaí, because s does not take eclipsis.

What is the difference between saineolaí and eolaí?

Saineolaí means an expert in any field, while eolaí usually means a scientist. Saineolas is the expertise itself.

How do I say someone is an expert on something?

Use ar: Is saineolaí é ar an stair, 'He is an expert on history.'

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