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Master in Irish (Máistir): Meaning, Pronunciation, Usage

‘máistir’ also means: schoolmaster

The Irish for master is máistir, a masculine noun (plural máistrí).
Updated October 2026Report a mistake

How to say “master” in Irish

Irish:
máistir
English:
master, schoolmaster
Word type:
noun
Gender:
masculine, fourth declension
Pronunciation:
“MAWSH-tyir”  /ˈmˠɑːʃtʲəɾʲ/
Various forms
Plural:
máistrí (masters)
Genitive singular:
máistir, an mháistir (e.g. teach an mháistir, the master's house)
Genitive plural:
máistrí, na máistrí (e.g. cruinniú na máistrí, the meeting of the masters)

What does “máistir” mean?

“Máistir” has three alternative meanings. The most common comes first.

master
A person who is in charge of others, such as an employer or the owner of a servant or animal.Also: boss, employer, owner.
2 other meanings: schoolmaster
2schoolmaster
A male teacher, especially the head teacher of a primary school.Also: teacher, headmaster, master.
3master
A person who is highly skilled in a craft or art, an expert.Also: expert, master craftsman.

“Máistir” with the article

The plural of master in Irish is máistrí. Here is máistir after the article (an t-alt), in the singular and the plural.

an máistir
the master
No change after an
na máistrí
the masters
Plural: no change after na

“Máistir” in a sentence: Irish examples

Common Irish sentences using máistir, the Irish word for master.

Bhí an máistir crosta linn inniu.
The master was cross with us today.
Ba é m'athair máistir na scoile sin.
My father was the master of that school.
Labhair an máistir leis an rang go ciúin.
The master spoke quietly to the class.
Is máistir ar an bhfidil é.
He is a master of the fiddle.
Bhí na máistrí go léir sa halla.
All the masters were in the hall.
D'fhan an madra ag an doras lena mháistir.
The dog waited at the door for its master.
Ní féidir le duine fónamh do dhá mháistir.
No one can serve two masters.

Other nouns in Irish

More everyday Irish nouns to learn next.

Master in Irish: frequently asked questions

What is the Irish for master?

The Irish for master is máistir (pronounced “MAWSH-tyir”). It’s a masculine noun and the plural is máistrí. Depending on context it can also mean schoolmaster.

How do you pronounce máistir in Irish?

Máistir is said like “MAWSH-tyir” (IPA /ˈmˠɑːʃtʲəɾʲ/).

What is the plural of master in Irish?

The plural of máistir is máistrí; with the article, na máistrí means “the masters”. The genitive plural is máistrí, as in cruinniú na máistrí (the meeting of the masters).

Does máistir have more than one meaning?

Yes. Máistir can mean master or schoolmaster, depending on context; the first is the most common.

Why does máistir change to mháistir?

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

What is the female equivalent of máistir?

A female teacher or mistress is 'máistreás', so 'an mháistreás' is the schoolmistress, while 'an máistir' is the schoolmaster.

Is máistir the usual word for a teacher?

The general word is 'múinteoir'; 'an máistir' is a traditional way to refer to the male (head) teacher of a national school.

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