HeyRua Get the app

Astronomy in Irish (Réalteolaíocht): Meaning, Pronunciation, Usage

The Irish for astronomy is réalteolaíocht, a feminine noun.
Updated October 2026Report a mistake

How to say “astronomy” in Irish

Irish:
réalteolaíocht
English:
astronomy
Word type:
noun
Gender:
feminine, third declension
Pronunciation:
“RAYL-tyoh-lee-ukht”  /ˈrʲeːl̪ˠtʲoːl̪ˠiːxt̪ˠ/
Various forms
Genitive singular:
réalteolaíochta, na réalteolaíochta (e.g. leabhar réalteolaíochta, an astronomy book)

What does “réalteolaíocht” mean?

astronomy
The science that studies the stars, planets and other bodies in space.Also: study of stars, stargazing science.

“Réalteolaíocht” with the article

Here is réalteolaíocht after the article (an t-alt).

an réalteolaíocht
the astronomy
No change after an

“Réalteolaíocht” in a sentence: Irish examples

Common Irish sentences using réalteolaíocht, the Irish word for astronomy.

Is aoibhinn liom réalteolaíocht.
I love astronomy.
Tá suim mhór aici sa réalteolaíocht.
She has a great interest in astronomy.
Rinne sé staidéar ar an réalteolaíocht san ollscoil.
He studied astronomy at university.
Is ollamh réalteolaíochta í a máthair.
Her mother is a professor of astronomy.
Cheannaigh mé teileascóp mar gheall ar mo spéis sa réalteolaíocht.
I bought a telescope because of my interest in astronomy.
Tá cumann réalteolaíochta againn sa bhaile.
We have an astronomy club in the town.
Ní hionann réalteolaíocht agus astralaíocht.
Astronomy is not the same as astrology.

Other nouns in Irish

More everyday Irish nouns to learn next.

Astronomy in Irish: frequently asked questions

What is the Irish for astronomy?

The Irish for astronomy is réalteolaíocht (pronounced “RAYL-tyoh-lee-ukht”). It’s a feminine noun.

How do you pronounce réalteolaíocht in Irish?

Réalteolaíocht is said like “RAYL-tyoh-lee-ukht” (IPA /ˈrʲeːl̪ˠtʲoːl̪ˠiːxt̪ˠ/).

Does réalteolaíocht have a plural?

No plural form is given for réalteolaíocht in the standard. Many abstract and mass nouns in Irish have no plural.

What is the difference between réalteolaíocht and astralaíocht?

Réalteolaíocht is astronomy, the science of space, while astralaíocht is astrology, the belief that the stars influence people's lives.

What do you call an astronomer?

An astronomer is a réalteolaí, from the same root as réalteolaíocht.

Learn Irish by
actually speaking it

Learn everyday Irish words like réalteolaíocht through guided conversation with Rua.

7-day free trial. Cancel anytime.

The HeyRua app home screen