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Real number in Irish (Réaduimhir): Meaning, Pronunciation, Usage

The Irish for real number is réaduimhir, a feminine noun (plural réaduimhreacha).
Updated October 2026Report a mistake

How to say “real number” in Irish

Irish:
réaduimhir
English:
real number
Word type:
noun
Gender:
feminine, fifth declension
Pronunciation:
“RAY-dim-ir”  /ˈɾʲeːd̪ˠɪvʲɪɾʲ/
Various forms
Plural:
réaduimhreacha (real numbers)
Genitive singular:
réaduimhreach, na réaduimhreach (e.g. sainmhíniú na réaduimhreach, the definition of the real number)
Genitive plural:
réaduimhreacha, na réaduimhreacha (e.g. tacar na réaduimhreacha, the set of real numbers)

What does “réaduimhir” mean?

real number
In mathematics, any number that can be placed on the number line, whether rational or irrational.Also: real, number.

“Réaduimhir” with the article

The plural of real number in Irish is réaduimhreacha. Here is réaduimhir after the article (an t-alt), in the singular and the plural.

an réaduimhir
the real number
No change after an
na réaduimhreacha
the real numbers
Plural: no change after na

“Réaduimhir” in a sentence: Irish examples

Common Irish sentences using réaduimhir, the Irish word for real number.

Is réaduimhir í pí.
Pi is a real number.
Is réaduimhir í gach slánuimhir freisin.
Every integer is also a real number.
Roghnaigh réaduimhir idir a náid agus a haon.
Choose a real number between zero and one.
Níl fréamh chearnach na réaduimhreach seo diúltach.
The square root of this real number is not negative.
D'fhoghlaimíomar faoi na réaduimhreacha inniu.
We learned about the real numbers today.
Is réaduimhir í fréamh chearnach a dó.
The square root of two is a real number.
Ní réaduimhreacha iad na huimhreacha samhailteacha.
Imaginary numbers are not real numbers.

Other nouns in Irish

More everyday Irish nouns to learn next.

Real number in Irish: frequently asked questions

What is the Irish for real number?

The Irish for real number is réaduimhir (pronounced “RAY-dim-ir”). It’s a feminine noun and the plural is réaduimhreacha.

How do you pronounce réaduimhir in Irish?

Réaduimhir is said like “RAY-dim-ir” (IPA /ˈɾʲeːd̪ˠɪvʲɪɾʲ/).

What is the plural of real number in Irish?

The plural of réaduimhir is réaduimhreacha; with the article, na réaduimhreacha means “the real numbers”. The genitive plural is réaduimhreacha, as in tacar na réaduimhreacha (the set of real numbers).

How is 'réaduimhir' built?

It combines 'réad' (real, actual thing) with 'uimhir' (number), so 'réaduimhir' is literally 'real number', just as 'slánuimhir' means 'integer'.

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