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Grandmother in Irish (Seanmháthair): Meaning, Pronunciation, Usage

The Irish for grandmother is seanmháthair, a feminine noun (plural seanmháithreacha).
Updated October 2026Report a mistake

How to say “grandmother” in Irish

Irish:
seanmháthair
English:
grandmother
Word type:
noun
Gender:
feminine, fifth declension
Pronunciation:
“SHAN-waw-hir”  /ˈʃanˌwaːhəɾʲ/
Various forms
Plural:
seanmháithreacha (grandmothers)
Genitive singular:
seanmháthar, na seanmháthar (e.g. teach mo sheanmháthar, my grandmother's house)
Genitive plural:
seanmháithreacha, na seanmháithreacha (e.g. scéalta seanmháithreacha, grandmothers' stories)

What does “seanmháthair” mean?

grandmother
The mother of your father or mother.Also: granny, grandma, nana.

Other Irish words for grandmother: seantuismitheoir (grandparent), móraí (grandmother), mamó (granny)

“Seanmháthair” with the article

The plural of grandmother in Irish is seanmháithreacha. Here is seanmháthair after the article (an t-alt), in the singular and the plural.

an tseanmháthair
the grandmother
Feminine nouns take t before s after an
na seanmháithreacha
the grandmothers
Plural: no change after na

“Seanmháthair” in a sentence: Irish examples

Common Irish sentences using seanmháthair, the Irish word for grandmother.

Is seanmháthair anois í Áine.
Áine is a grandmother now.
Tá mo sheanmháthair ochtó bliain d'aois.
My grandmother is eighty years old.
Thug an tseanmháthair milseáin do na páistí.
The grandmother gave the children sweets.
Chaith mé an samhradh i dteach mo sheanmháthar.
I spent the summer at my grandmother's house.
Bhí na seanmháithreacha ag caint sa chistin.
The grandmothers were chatting in the kitchen.
Rugadh mo sheanmháthair i gConamara.
My grandmother was born in Connemara.
An bhfuil do sheanmháthair fós beo?
Is your grandmother still alive?

Other nouns in Irish

More everyday Irish nouns to learn next.

Grandmother in Irish: frequently asked questions

What is the Irish for grandmother?

The Irish for grandmother is seanmháthair (pronounced “SHAN-waw-hir”). It’s a feminine noun and the plural is seanmháithreacha.

How do you pronounce seanmháthair in Irish?

Seanmháthair is said like “SHAN-waw-hir” (IPA /ˈʃanˌwaːhəɾʲ/).

What is the plural of grandmother in Irish?

The plural of seanmháthair is seanmháithreacha; with the article, na seanmháithreacha means “the grandmothers”. The genitive plural is seanmháithreacha, as in scéalta seanmháithreacha (grandmothers' stories).

Why does seanmháthair change to sheanmháthair?

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

Is there a more informal word for grandmother?

Yes, children often say mamó or móraí, while seanmháthair is the standard, neutral word.

How do I say great-grandmother?

Use sin-seanmháthair, formed with the prefix sin- in front of seanmháthair.

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