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Basement in Irish (Íoslach): Meaning, Pronunciation, Usage

‘íoslach’ also means: lowland

The Irish for basement is íoslach, a masculine noun (plural íoslaigh).
Updated October 2026Report a mistake

How to say “basement” in Irish

Irish:
íoslach
English:
basement, lowland
Word type:
noun
Gender:
masculine, first declension
Pronunciation:
“EES-lukh”  /ˈiːsˠl̪ˠəx/
Various forms
Plural:
íoslaigh (basements)
Genitive singular:
íoslaigh, an íoslaigh (e.g. doras an íoslaigh, the basement door)
Genitive plural:
íoslach, na n-íoslach (e.g. doirse na n-íoslach, the basement doors)

What does “íoslach” mean?

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

basement
The lowest part of a building, partly or wholly below ground level.Also: cellar, lower ground floor, undercroft.
1 other meaning: lowland
2lowland
Low-lying ground or the lower part of something.Also: low ground, bottom.

Other Irish words for basement: ceallar (cellar), siléar (cellar)

“Íoslach” with the article

The plural of basement in Irish is íoslaigh. Here is íoslach after the article (an t-alt), in the singular and the plural.

an t-íoslach
the basement
Masculine nouns take t before a vowel after an
na híoslaigh
the basements
Plural: na adds h before a vowel

“Íoslach” in a sentence: Irish examples

Common Irish sentences using íoslach, the Irish word for basement.

Téigh síos san íoslach.
Go down to the basement.
Tá siad ag teacht aníos ón íoslach.
They're coming up from the basement.
Tá íoslach mór faoin teach seo.
There's a big basement under this house.
Coinnímid na rothair san íoslach.
We keep the bikes in the basement.
Bhí uisce ar urlár an íoslaigh tar éis na stoirme.
There was water on the basement floor after the storm.
Tá íoslaigh ag go leor de na tithe sa tsráid.
Many of the houses on the street have basements.
Tá an seomra níocháin san íoslach.
The laundry room is in the basement.

Other nouns in Irish

More everyday Irish nouns to learn next.

Basement in Irish: frequently asked questions

What is the Irish for basement?

The Irish for basement is íoslach (pronounced “EES-lukh”). It’s a masculine noun and the plural is íoslaigh. Depending on context it can also mean lowland.

How do you pronounce íoslach in Irish?

Íoslach is said like “EES-lukh” (IPA /ˈiːsˠl̪ˠəx/).

What is the plural of basement in Irish?

The plural of íoslach is íoslaigh; with the article, na híoslaigh means “the basements”. The genitive plural is íoslach, as in doirse na n-íoslach (the basement doors).

Does íoslach have more than one meaning?

Yes. Íoslach can mean basement or lowland, depending on context; the first is the most common.

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

Irish nouns beginning with a vowel take a prefix after certain words: an t-íoslach (the basement), a híoslach (her basement), a n-íoslach (their basement), na híoslaigh (the basements).

What is the difference between íoslach and siléar?

Íoslach is a basement, a lower floor of a building, while siléar is a cellar, often used for storage such as wine.

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