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Astrophysics in Irish (Réaltfhisic): Meaning, Pronunciation, Usage

The Irish for astrophysics is réaltfhisic, a feminine noun.
Updated October 2026Report a mistake

How to say “astrophysics” in Irish

Irish:
réaltfhisic
English:
astrophysics
Word type:
noun
Gender:
feminine
Pronunciation:
“RAYLT-ish-ik”  /ˈɾʲeːl̪ˠt̪ˠɪʃɪcː/
Various forms
Genitive singular:
réaltfhisice, na réaltfhisice (e.g. ollamh réaltfhisice, professor of astrophysics)

What does “réaltfhisic” mean?

astrophysics
The branch of science that studies the physical nature of stars, planets and other bodies in space.Also: astrophysical science, physics of stars.

“Réaltfhisic” with the article

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

an réaltfhisic
the astrophysics
No change after an

“Réaltfhisic” in a sentence: Irish examples

Common Irish sentences using réaltfhisic, the Irish word for astrophysics.

Is brainse den fhisic í an réaltfhisic.
Astrophysics is a branch of physics.
Tá sí ag déanamh staidéir ar réaltfhisic san ollscoil.
She is studying astrophysics at university.
Bhí léacht réaltfhisice againn inniu.
We had an astrophysics lecture today.
Tá suim mhór aige sa réaltfhisic.
He is very interested in astrophysics.
Fuair sé céim i réaltfhisic anuraidh.
He got a degree in astrophysics last year.
Is deacair an réaltfhisic a thuiscint gan mhatamaitic.
Astrophysics is hard to understand without maths.
Scríobh sí leabhar faoi réaltfhisic do pháistí.
She wrote a book about astrophysics for children.

Other nouns in Irish

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Astrophysics in Irish: frequently asked questions

What is the Irish for astrophysics?

The Irish for astrophysics is réaltfhisic (pronounced “RAYLT-ish-ik”). It’s a feminine noun.

How do you pronounce réaltfhisic in Irish?

Réaltfhisic is said like “RAYLT-ish-ik” (IPA /ˈɾʲeːl̪ˠt̪ˠɪʃɪcː/).

Does réaltfhisic have a plural?

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

What is the difference between réaltfhisic and réalteolaíocht?

Réalteolaíocht is astronomy, the general study of the heavens, while réaltfhisic is astrophysics, the physics of stars and other bodies in space.

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