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Pest in Irish (Lotnaid): Meaning, Pronunciation, Usage

The Irish for pest is lotnaid, a feminine noun (plural lotnaidí).
Updated October 2026Report a mistake

How to say “pest” in Irish

Irish:
lotnaid
English:
pest
Word type:
noun
Gender:
feminine, second declension
Pronunciation:
“LUT-nidge”  /ˈl̪ˠɔt̪ˠn̪ˠədʲ/
Various forms
Plural:
lotnaidí (pests)
Genitive singular:
lotnaide, na lotnaide (e.g. rialú na lotnaide, control of the pest)
Genitive plural:
lotnaidí, na lotnaidí (e.g. rialú lotnaidí, pest control)

What does “lotnaid” mean?

pest
An insect, animal or organism that damages crops, plants, food or property.Also: vermin, agricultural pest, crop pest.

“Lotnaid” with the article

The plural of pest in Irish is lotnaidí. Here is lotnaid after the article (an t-alt), in the singular and the plural.

an lotnaid
the pest
No change after an
na lotnaidí
the pests
Plural: no change after na

“Lotnaid” in a sentence: Irish examples

Common Irish sentences using lotnaid, the Irish word for pest.

Is lotnaid mhór é an seilide sa ghairdín.
The slug is a major pest in the garden.
Rinne an lotnaid damáiste do na prátaí.
The pest damaged the potatoes.
Scaip an lotnaid go tapa ar fud na páirce.
The pest spread quickly throughout the field.
Tá lotnaidí ag ithe na gcabáistí.
Pests are eating the cabbages.
Úsáideann feirmeoirí ceimiceáin in aghaidh lotnaidí.
Farmers use chemicals against pests.
Ní raibh aon lotnaid i mo ghlasraí i mbliana.
There was no pest in my vegetables this year.
Is deacair fáil réidh leis an lotnaid seo.
It is hard to get rid of this pest.

Other nouns in Irish

More everyday Irish nouns to learn next.

Pest in Irish: frequently asked questions

What is the Irish for pest?

The Irish for pest is lotnaid (pronounced “LUT-nidge”). It’s a feminine noun and the plural is lotnaidí.

How do you pronounce lotnaid in Irish?

Lotnaid is said like “LUT-nidge” (IPA /ˈl̪ˠɔt̪ˠn̪ˠədʲ/).

What is the plural of pest in Irish?

The plural of lotnaid is lotnaidí; with the article, na lotnaidí means “the pests”. The genitive plural is lotnaidí, as in rialú lotnaidí (pest control).

Can 'lotnaid' be used for an annoying person, like English 'pest'?

Not normally: 'lotnaid' is the technical word for a crop or garden pest. For an annoying person use a word like 'cráiteachán' or say 'is crá croí é'.

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