HeyRua Get the app

Invasion in Irish (Ionruathar): Meaning, Pronunciation, Usage

The Irish for invasion is ionruathar, a masculine noun (plural ionruathair).
Updated October 2026Report a mistake

How to say “invasion” in Irish

Irish:
ionruathar
English:
invasion
Word type:
noun
Gender:
masculine
Pronunciation:
“IN-roo-uh-hur”  /ˈɪn̪ˠˌɾˠuəhəɾˠ/
Various forms
Plural:
ionruathair (invasions)
Genitive singular:
ionruathair, an ionruathair (e.g. tús an ionruathair, the start of the invasion)
Genitive plural:
ionruathar, na n-ionruathar (e.g. stair na n-ionruathar, the history of the invasions)

What does “ionruathar” mean?

invasion
An armed attack in which forces enter another country or territory to take control of it.Also: incursion, raid, inroad.

“Ionruathar” with the article

The plural of invasion in Irish is ionruathair. Here is ionruathar after the article (an t-alt), in the singular and the plural.

an t-ionruathar
the invasion
Masculine nouns take t before a vowel after an
na hionruathair
the invasions
Plural: na adds h before a vowel

“Ionruathar” in a sentence: Irish examples

Common Irish sentences using ionruathar, the Irish word for invasion.

Rinne siad ionruathar ar an tír sin.
They invaded that country.
Cuireadh tús leis an ionruathar san earrach.
The invasion began in the spring.
Cailleadh na mílte le linn an ionruathair.
Thousands died during the invasion.
Bhí an t-ionruathar mídhleathach, dar leis an rialtas.
The invasion was illegal, according to the government.
D'fhulaing an tír ionruathair go minic sa stair.
The country suffered invasions often in its history.
Bhí mórán agóidí i gcoinne an ionruathair.
There were many protests against the invasion.
Scríobh sé leabhar faoi ionruathair na Lochlannach.
He wrote a book about the Viking invasions.

Other nouns in Irish

More everyday Irish nouns to learn next.

Invasion in Irish: frequently asked questions

What is the Irish for invasion?

The Irish for invasion is ionruathar (pronounced “IN-roo-uh-hur”). It’s a masculine noun and the plural is ionruathair.

How do you pronounce ionruathar in Irish?

Ionruathar is said like “IN-roo-uh-hur” (IPA /ˈɪn̪ˠˌɾˠuəhəɾˠ/).

What is the plural of invasion in Irish?

The plural of ionruathar is ionruathair; with the article, na hionruathair means “the invasions”. The genitive plural is ionruathar, as in stair na n-ionruathar (the history of the invasions).

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

Irish nouns beginning with a vowel take a prefix after certain words: an t-ionruathar (the invasion), a hionruathar (her invasion), a n-ionruathar (their invasion), na hionruathair (the invasions).

What is the difference between ionruathar and ionsaí?

Ionsaí is any attack or assault, while ionruathar is specifically an invasion or incursion into territory, as in ionruathar ar an Iaráic.

Which preposition follows ionruathar?

Use ar for the place invaded: rinne siad ionruathar ar an tír. You can also say ionruathar isteach i.

Learn Irish by
actually speaking it

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

7-day free trial. Cancel anytime.

The HeyRua app home screen