HeyRua Get the app

Headmaster in Irish (Ardmháistir): Meaning, Pronunciation, Usage

The Irish for headmaster is ardmháistir, a masculine noun (plural ardmháistrí).
Updated October 2026Report a mistake

How to say “headmaster” in Irish

Irish:
ardmháistir
English:
headmaster
Word type:
noun
Gender:
masculine, fourth declension
Pronunciation:
“AWRD-vaash-tyir”  /ˈɑːrˠd̪ˠˌwaːʃtʲəɾʲ/
Various forms
Plural:
ardmháistrí (headmasters)
Genitive singular:
ardmháistir, an ardmháistir (e.g. oifig an ardmháistir, the headmaster's office)
Genitive plural:
ardmháistrí, na n-ardmháistrí (e.g. cruinniú na n-ardmháistrí, the meeting of the headmasters)

What does “ardmháistir” mean?

headmaster
The male teacher in charge of a school, especially a secondary school.Also: principal, head teacher, master.

Other Irish words for headmaster: príomhoide (principal)

“Ardmháistir” with the article

The plural of headmaster in Irish is ardmháistrí. Here is ardmháistir after the article (an t-alt), in the singular and the plural.

an t-ardmháistir
the headmaster
Masculine nouns take t before a vowel after an
na hardmháistrí
the headmasters
Plural: na adds h before a vowel

“Ardmháistir” in a sentence: Irish examples

Common Irish sentences using ardmháistir, the Irish word for headmaster.

Is é an tUasal Ó Briain an t-ardmháistir.
Mr O'Brien is the headmaster.
Cuireadh mé chuig oifig an ardmháistir inné.
I was sent to the headmaster's office yesterday.
Bhí ardmháistir nua againn i mbliana.
We had a new headmaster this year.
Labhair an t-ardmháistir leis na tuismitheoirí.
The headmaster spoke to the parents.
Tháinig na hardmháistrí le chéile i mBaile Átha Cliath.
The headmasters met in Dublin.
Ba é m'athair ardmháistir na scoile sin.
My father was the headmaster of that school.
Tá eagla ar na páistí roimh an ardmháistir.
The children are afraid of the headmaster.

Other nouns in Irish

More everyday Irish nouns to learn next.

Headmaster in Irish: frequently asked questions

What is the Irish for headmaster?

The Irish for headmaster is ardmháistir (pronounced “AWRD-vaash-tyir”). It’s a masculine noun and the plural is ardmháistrí.

How do you pronounce ardmháistir in Irish?

Ardmháistir is said like “AWRD-vaash-tyir” (IPA /ˈɑːrˠd̪ˠˌwaːʃtʲəɾʲ/).

What is the plural of headmaster in Irish?

The plural of ardmháistir is ardmháistrí; with the article, na hardmháistrí means “the headmasters”. The genitive plural is ardmháistrí, as in cruinniú na n-ardmháistrí (the meeting of the headmasters).

Why does ardmháistir sometimes have a t or h in front of it?

Irish nouns beginning with a vowel take a prefix after certain words: an t-ardmháistir (the headmaster), a hardmháistir (her headmaster), a n-ardmháistir (their headmaster), na hardmháistrí (the headmasters).

What is the difference between 'ardmháistir' and 'príomhoide'?

'Príomhoide' is the usual modern word for a school principal of either sex, while 'ardmháistir' means headmaster and is more traditional.

Learn Irish by
actually speaking it

Learn everyday Irish words like ardmháistir through guided conversation with Rua.

7-day free trial. Cancel anytime.

The HeyRua app home screen