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Slag in Irish (Slaig): Meaning, Pronunciation, Usage

The Irish for slag is slaig, a feminine noun.
Updated October 2026Report a mistake

How to say “slag” in Irish

Irish:
slaig
English:
slag
Word type:
noun
Gender:
feminine, second declension
Pronunciation:
“slag”  /slˠaɟ/
Various forms
Genitive singular:
slaige, na slaige (e.g. carn slaige, a heap of slag)

What does “slaig” mean?

slag
The waste material left over when metal is separated from ore by smelting.Also: dross, cinder, clinker.

Other Irish words for slag: spoch (tease)

“Slaig” with the article

Here is slaig after the article (an t-alt).

an tslaig
the slag
Feminine nouns take t before s after an

“Slaig” in a sentence: Irish examples

Common Irish sentences using slaig, the Irish word for slag.

Is ábhar dramhaíola í slaig.
Slag is a waste material.
Bhí an tslaig ag snámh ar bharr na miotalach leáite.
The slag was floating on top of the molten metal.
Baintear an tslaig den iarann sa bhfoirnéis.
The slag is removed from the iron in the furnace.
Tá carn mór slaige in aice leis an seanmhianach.
There is a big heap of slag beside the old mine.
Úsáidtear slaig uaireanta chun bóithre a dhéanamh.
Slag is sometimes used to make roads.
Bhí boladh láidir ón tslaig te.
There was a strong smell from the hot slag.
Fuair siad píosaí slaige i bhfothrach na ceárta.
They found pieces of slag in the ruins of the forge.

Other nouns in Irish

More everyday Irish nouns to learn next.

Slag in Irish: frequently asked questions

What is the Irish for slag?

The Irish for slag is slaig (pronounced “slag”). It’s a feminine noun.

How do you pronounce slaig in Irish?

Slaig is said like “slag” (IPA /slˠaɟ/).

Does slaig have a plural?

No plural form is given for slaig in the standard. Many abstract and mass nouns in Irish have no plural.

Why does slaig change to shlaig?

After words like mo (my) and do (your) the first letter is lenited: mo shlaig. After ár (our) it stays ár slaig, because s does not take eclipsis.

Is 'slaig' used for an insult like English 'slag'?

No, 'slaig' means slag in the sense of smelting waste only; it is not an insult for a person in standard Irish.

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