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Old person in Irish (Aostach): Meaning, Pronunciation, Usage

The Irish for old person is aostach, a masculine noun (plural aostaigh).
Updated October 2026Report a mistake

How to say “old person” in Irish

Irish:
aostach
English:
old person
Word type:
noun
Gender:
masculine
Pronunciation:
“AYS-tukh”  /ˈiːsˠt̪ˠəx/
Various forms
Plural:
aostaigh (old people)
Genitive singular:
aostaigh, an aostaigh (e.g. cearta an aostaigh, the rights of the elderly person)
Genitive plural:
aostach, na n-aostach (e.g. teach na n-aostach, the old people's home)

What does “aostach” mean?

old person
A person who is elderly or advanced in years.Also: elderly person, aged person, senior citizen, elder.

Other Irish words for old person: seanduine (old person), seanóir (old person)

“Aostach” with the article

The plural of old person in Irish is aostaigh. Here is aostach after the article (an t-alt), in the singular and the plural.

an t-aostach
the old person
Masculine nouns take t before a vowel after an
na haostaigh
the old people
Plural: na adds h before a vowel

“Aostach” in a sentence: Irish examples

Common Irish sentences using aostach, the Irish word for old person.

Is aostach é anois, ach tá sé láidir fós.
He is an old person now, but he is still strong.
Thug an t-aostach comhairle mhaith dúinn.
The old person gave us good advice.
Bhí lámh an aostaigh ag crith.
The old person's hand was trembling.
Tá go leor aostach ina gcónaí sa cheantar seo.
Many elderly people live in this area.
Ba cheart cabhrú leis na haostaigh i gcónaí.
We should always help the elderly.
Tá cúram na n-aostach ag dul i méid.
The care of the elderly is increasing.
Labhair aostach liom faoin seansaol.
An old person spoke to me about the old days.

Other nouns in Irish

More everyday Irish nouns to learn next.

Old person in Irish: frequently asked questions

What is the Irish for old person?

The Irish for old person is aostach (pronounced “AYS-tukh”). It’s a masculine noun and the plural is aostaigh.

How do you pronounce aostach in Irish?

Aostach is said like “AYS-tukh” (IPA /ˈiːsˠt̪ˠəx/).

What is the plural of old person in Irish?

The plural of aostach is aostaigh; with the article, na haostaigh means “the old people”. The genitive plural is aostach, as in teach na n-aostach (the old people's home).

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

Irish nouns beginning with a vowel take a prefix after certain words: an t-aostach (the old person), a haostach (her old person), a n-aostach (their old person), na haostaigh (the old people).

What is the difference between 'aostach' and 'seanduine'?

'Seanduine' is the everyday word for an old person, while 'aostach' is more formal and often used in official contexts such as 'cúram na n-aostach' (care of the elderly).

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