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Flame in Irish (Lasair): Meaning, Pronunciation, Usage

‘lasair’ also means: flash

The Irish for flame is lasair, a feminine noun (plural lasracha).
Updated October 2026Report a mistake

How to say “flame” in Irish

Irish:
lasair
English:
flame, flash
Word type:
noun
Gender:
feminine, fifth declension
Pronunciation:
“LAS-ir”  /ˈl̪ˠasˠəɾʲ/
Various forms
Plural:
lasracha (flames)
Genitive singular:
lasrach, na lasrach (e.g. teas na lasrach, the heat of the flame)
Genitive plural:
lasracha, na lasracha (e.g. teas na lasracha, the heat of the flames)

What does “lasair” mean?

“Lasair” has two alternative meanings. The most common comes first.

flame
A tongue of fire rising from something that is burning.Also: blaze, fire, flare.
1 other meaning: flash
2flash
A sudden bright burst of light or colour, or a flush of the face.Also: flush, glow, redness.

Other Irish words for flame: bladhaire (flame), bladhm (flame)

“Lasair” with the article

The plural of flame in Irish is lasracha. Here is lasair after the article (an t-alt), in the singular and the plural.

an lasair
the flame
No change after an
na lasracha
the flames
Plural: no change after na

“Lasair” in a sentence: Irish examples

Common Irish sentences using lasair, the Irish word for flame.

Bhí lasair bheag ag éirí ón gcoinneal.
A small flame was rising from the candle.
Chuaigh an lasair as leis an ngaoth.
The flame went out in the wind.
Ná cuir do lámh gar don lasair.
Don't put your hand near the flame.
Bhí na lasracha le feiceáil i bhfad ó bhaile.
The flames could be seen from far away.
Chuaigh an teach trí thine agus d'éirigh lasracha arda.
The house caught fire and tall flames rose up.
Mhothaigh mé teas na lasrach ar m'aghaidh.
I felt the heat of the flame on my face.
Las sé an tine agus tháinig lasair ghorm aisti.
He lit the fire and a blue flame came from it.

Other nouns in Irish

More everyday Irish nouns to learn next.

Flame in Irish: frequently asked questions

What is the Irish for flame?

The Irish for flame is lasair (pronounced “LAS-ir”). It’s a feminine noun and the plural is lasracha. Depending on context it can also mean flash.

How do you pronounce lasair in Irish?

Lasair is said like “LAS-ir” (IPA /ˈl̪ˠasˠəɾʲ/).

What is the plural of flame in Irish?

The plural of lasair is lasracha; with the article, na lasracha means “the flames”. The genitive plural is lasracha, as in teas na lasracha (the heat of the flames).

Does lasair have more than one meaning?

Yes. Lasair can mean flame or flash, depending on context; the first is the most common.

What is the difference between 'lasair' and 'bladhm'?

'Lasair' is the ordinary word for a flame, while 'bladhm' suggests a sudden blaze or flare-up. Both can describe fire, but 'bladhm' is more forceful.

How do I say something is 'in flames'?

You can say 'tá sé trí lasracha' or more commonly 'tá sé trí thine' (it is on fire).

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