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Back in Irish (Ais): Meaning, Pronunciation, Usage

‘ais’ also means: side

The Irish for back is ais, a feminine noun (plural aiseanna).
Updated October 2026Report a mistake

How to say “back” in Irish

Irish:
ais
English:
back, side
Word type:
noun
Gender:
feminine, second declension
Pronunciation:
“ash”  /aʃ/
Various forms
Plural:
aiseanna (backs)
Genitive singular:
aise, na haise (e.g. lár na haise, the middle of the axis)
Genitive plural:
aiseanna, na n-aiseanna

What does “ais” mean?

“Ais” has two alternative meanings. The most common comes first.

back
The back or rear side; mainly used in the phrase 'ar ais' meaning back or returning.Also: return, backwards.
1 other meaning: side
2side
Side or vicinity, used in 'le hais' meaning beside or compared with.Also: beside, compared with, alongside.

Other Irish words for back: cúl (back), droim (back), tacaigh (support), cúlaigh (back)

“Ais” with the article

The plural of back in Irish is aiseanna. Here is ais after the article (an t-alt), in the singular and the plural.

an ais
the back
No change: feminine nouns starting with a vowel keep their form after an
na haiseanna
the backs
Plural: na adds h before a vowel

“Ais” in a sentence: Irish examples

Common Irish sentences using ais, the Irish word for back.

Tháinig siad ar ais aréir.
They came back last night.
Seo duit do chuid airgid ar ais.
Here is your money back.
Tá sé fíordheas a bheith ar ais.
It is really nice to be back.
Glaoigh ar ais orm amárach, le do thoil.
Call me back tomorrow, please.
Tar ar ais anseo i gceann coicíse.
Come back here in two weeks.
Níl sé go dona le hais an lae inné.
It isn't bad compared with yesterday.
Shuigh sí le m'ais ar an mbinse.
She sat beside me on the bench.

Other nouns in Irish

More everyday Irish nouns to learn next.

Phrases with “ais”

Back in Irish: frequently asked questions

What is the Irish for back?

The Irish for back is ais (pronounced “ash”). It’s a feminine noun and the plural is aiseanna. Depending on context it can also mean side.

How do you pronounce ais in Irish?

Ais is said like “ash” (IPA /aʃ/).

What is the plural of back in Irish?

The plural of ais is aiseanna; with the article, na haiseanna means “the backs”.

Does ais have more than one meaning?

Yes. Ais can mean back or side, depending on context; the first is the most common.

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

Irish nouns beginning with a vowel take a prefix after certain words: an ais (the back), a hais (her back), a n-ais (their back), na haiseanna (the backs).

Can I use 'ais' on its own to mean back?

Hardly ever: it appears almost only in phrases like 'ar ais' (back) and 'le hais' (beside, compared with). For the body part use 'droim'.

How do I say 'beside me' with this word?

Use the possessive inside the phrase: 'le m'ais' (beside me), 'le d'ais' (beside you), 'lena ais' (beside him).

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