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Genus in Irish (Géineas): Meaning, Pronunciation, Usage

The Irish for genus is géineas, a masculine noun (plural géinis).
Updated October 2026Report a mistake

How to say “genus” in Irish

Irish:
géineas
English:
genus
Word type:
noun
Gender:
masculine, first declension
Pronunciation:
“GAY-nyus”  /ˈɟeːnʲəsˠ/
Various forms
Plural:
géinis (genera)
Genitive singular:
géinis, an ghéinis (e.g. ainm an ghéinis, the name of the genus)
Genitive plural:
géineas, na ngéineas (e.g. liosta na ngéineas, the list of genera)

What does “géineas” mean?

genus
In biology, a group of closely related species ranked above species and below family.Also: biological genus, taxonomic group.

“Géineas” with the article

The plural of genus in Irish is géinis. Here is géineas after the article (an t-alt), in the singular and the plural.

an géineas
the genus
No change after an
na géinis
the genera
Plural: no change after na

“Géineas” in a sentence: Irish examples

Common Irish sentences using géineas, the Irish word for genus.

Is géineas plandaí é seo.
This is a genus of plants.
Tá a lán speiceas sa ghéineas sin.
There are many species in that genus.
Scríobhtar ainm an ghéinis le ceannlitir.
The name of the genus is written with a capital letter.
Baineann an dá ainmhí leis an ngéineas céanna.
The two animals belong to the same genus.
Tá roinnt géinis sa teaghlach seo.
There are several genera in this family.
Cén géineas lena mbaineann an féileacán seo?
Which genus does this butterfly belong to?
D'fhoghlaimíomar faoi ghéinis agus speicis inniu.
We learned about genera and species today.

Other nouns in Irish

More everyday Irish nouns to learn next.

Genus in Irish: frequently asked questions

What is the Irish for genus?

The Irish for genus is géineas (pronounced “GAY-nyus”). It’s a masculine noun and the plural is géinis.

How do you pronounce géineas in Irish?

Géineas is said like “GAY-nyus” (IPA /ˈɟeːnʲəsˠ/).

What is the plural of genus in Irish?

The plural of géineas is géinis; with the article, na géinis means “the genera”. The genitive plural is géineas, as in liosta na ngéineas (the list of genera).

Why does géineas change to ghéineas or ngéineas?

Irish changes the start of some words after certain words. After mo (my) géineas becomes mo ghéineas (lenition), and after ár (our) or i (in) it becomes ár ngéineas (eclipsis).

How does 'géineas' differ from 'géin'?

'Géineas' is a genus in biological classification, while 'géin' means a gene, the unit of heredity.

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