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Danger in Irish (Guais): Meaning, Pronunciation, Usage

The Irish for danger is guais, a feminine noun (plural guaiseacha).
Updated October 2026Report a mistake

How to say “danger” in Irish

Irish:
guais
English:
danger
Word type:
noun
Gender:
feminine, second declension
Pronunciation:
“goo-ish”  /ɡuəʃ/
Various forms
Plural:
guaiseacha (dangers)
Genitive singular:
guaise, na guaise (e.g. comhartha guaise, danger sign)
Genitive plural:
guaiseacha, na nguaiseacha (e.g. measúnú na nguaiseacha, the assessment of the hazards)

What does “guais” mean?

danger
A situation or thing that could cause harm, loss or injury.Also: hazard, peril, risk, jeopardy.

Other Irish words for danger: baol (danger), contúirt (danger), dainséar (danger)

“Guais” with the article

The plural of danger in Irish is guaiseacha. Here is guais after the article (an t-alt), in the singular and the plural.

an ghuais
the danger
Lenition: g becomes gh after an (feminine noun)
na guaiseacha
the dangers
Plural: no change after na

“Guais” in a sentence: Irish examples

Common Irish sentences using guais, the Irish word for danger.

Tá guais mhór sa bhóthar seo san oíche.
This road is very dangerous at night.
Bhí a shaol i nguais nuair a thit sé.
His life was in danger when he fell.
Ní fhaca sí an ghuais go dtí go raibh sé ródhéanach.
She didn't see the danger until it was too late.
Tá guaiseacha sláinte ag baint le tobac.
There are health hazards associated with tobacco.
Chuir an stoirm na báid i nguais.
The storm put the boats in danger.
Tá comhartha guaise ar an doras sin.
There's a danger sign on that door.
Thug sé rabhadh dúinn faoin nguais.
He warned us about the danger.

Other nouns in Irish

More everyday Irish nouns to learn next.

Danger in Irish: frequently asked questions

What is the Irish for danger?

The Irish for danger is guais (pronounced “goo-ish”). It’s a feminine noun and the plural is guaiseacha.

How do you pronounce guais in Irish?

Guais is said like “goo-ish” (IPA /ɡuəʃ/).

What is the plural of danger in Irish?

The plural of guais is guaiseacha; with the article, na guaiseacha means “the dangers”. The genitive plural is guaiseacha, as in measúnú na nguaiseacha (the assessment of the hazards).

Why does guais change to ghuais or nguais?

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

What is the difference between 'guais' and 'contúirt'?

Both mean danger; 'contúirt' is the more everyday word, while 'guais' is common in formal and safety contexts, e.g. 'guais dóiteáin' (fire hazard).

How do I say 'in danger'?

Use 'i nguais', e.g. 'Tá siad i nguais' (They are in danger).

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