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Sameness in Irish (Ionannas): Meaning, Pronunciation, Usage

‘ionannas’ also means: equality · uniformity

The Irish for sameness is ionannas, a masculine noun.
Updated October 2026Report a mistake

How to say “sameness” in Irish

Irish:
ionannas
English:
sameness, equality, uniformity
Word type:
noun
Gender:
masculine, first declension
Pronunciation:
“IN-uh-nuss”  /ˈɪnˠən̪ˠəsˠ/
Various forms
Genitive singular:
ionannais, an ionannais (e.g. prionsabal an ionannais, the principle of sameness)

What does “ionannas” mean?

“Ionannas” has three alternative meanings. The most common comes first.

sameness
The quality of being the same or identical, with no difference between things.Also: identity, identicalness, equivalence.
2 other meanings: equality or uniformity
2equality
The state of being equal in value or amount, especially in mathematics or logic.Also: equation, identity, parity.
3uniformity
A lack of variety, where everything is the same, sometimes in a dull way.Also: monotony, sameness.

“Ionannas” with the article

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

an t-ionannas
the sameness
Masculine nouns take t before a vowel after an

“Ionannas” in a sentence: Irish examples

Common Irish sentences using ionannas, the Irish word for sameness.

Níl ionannas iomlán idir an dá leagan.
The two versions are not completely identical.
Tá an t-ionannas eatarthu soiléir.
The sameness between them is clear.
Scríobh comhartha an ionannais idir an dá uimhir.
Write the equals sign between the two numbers.
Cuireann ionannas na laethanta tuirse orm.
The sameness of the days makes me tired.
Is ionannas é seo sa mhatamaitic.
This is an identity in mathematics.
Bhí ionannas le brath ina gcuid oibre.
A uniformity could be seen in their work.
Cruthaigh an t-ionannas sa cheist seo.
Prove the identity in this question.

Other nouns in Irish

More everyday Irish nouns to learn next.

Sameness in Irish: frequently asked questions

What is the Irish for sameness?

The Irish for sameness is ionannas (pronounced “IN-uh-nuss”). It’s a masculine noun. Depending on context it can also mean equality or uniformity.

How do you pronounce ionannas in Irish?

Ionannas is said like “IN-uh-nuss” (IPA /ˈɪnˠən̪ˠəsˠ/).

Does ionannas have a plural?

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

Does ionannas have more than one meaning?

Yes. Ionannas can mean sameness, equality or uniformity, depending on context; the first is the most common.

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

Irish nouns beginning with a vowel take a prefix after certain words: an t-ionannas (the sameness), a hionannas (her sameness), a n-ionannas (their sameness).

Is 'ionannas' the word for equality between people?

For social equality, use 'comhionannas', as in 'comhionannas inscne' (gender equality); 'ionannas' means sameness or a mathematical identity.

Does 'ionannas' mean personal identity?

No, a person's identity is 'féiniúlacht' or 'aitheantas'; 'ionannas' is identity in the sense of being the same.

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