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Filtering in Irish (Scagadh): Meaning, Pronunciation, Usage

‘scagadh’ also means: refining · screening

The Irish for filtering is scagadh, a masculine noun. Ag scagadh is straining, from the verb scag.
Updated October 2026Report a mistake

How to say “filtering” in Irish

Irish:
scagadh
English:
filtering, refining, screening
Word type:
noun (verbal noun)
Verbal noun of:
scag, to strain (ag scagadh, straining)
Gender:
masculine
Pronunciation:
“SKAH-guh”  /ˈsˠkaɡə/
Various forms
Genitive singular:
scagtha, an scagtha (e.g. próiseas an scagtha, the filtering process)

What does “scagadh” mean?

“Scagadh” has three alternative meanings. The most common comes first.

filtering
The act of passing a liquid or gas through something to remove impurities; verbal noun of the verb scag.Also: filtration, straining, sieving.
2 other meanings: refining or screening
2refining
The process of purifying or refining a substance such as oil or metal.Also: refinement, purification.
3screening
Careful examination or sifting of people, information or ideas to separate or select them.Also: sifting, scrutiny, critical examination, vetting.

“Scagadh” as a verbal noun

After ag, scagadh means straining: it is the verbal noun of the verb scag (to strain). A noun that follows it goes into the genitive.

agat
+
scagadhverbal noun
=
ag scagadhstraining

“Scagadh” with the article

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

an scagadh
the filtering
No change after an

“Scagadh” in a sentence: Irish examples

Common Irish sentences using scagadh, the Irish word for filtering.

Tá scagadh ag teastáil ón uisce seo.
This water needs filtering.
Rinne siad scagadh ar na hiarratais go léir.
They screened all the applications.
Is próiseas fada é scagadh na hola.
Refining oil is a long process.
Bhí an scagadh an-chúramach ar fad.
The screening was very careful.
Tá an t-uisce glan tar éis an scagtha.
The water is clean after filtering.
Cuireadh an fhianaise faoi scagadh géar.
The evidence was put under close scrutiny.
Úsáidtear gaineamh sa scagadh uisce.
Sand is used in water filtering.

Other nouns in Irish

More everyday Irish nouns to learn next.

Filtering in Irish: frequently asked questions

What is the Irish for filtering?

The Irish for filtering is scagadh (pronounced “SKAH-guh”). It’s a masculine noun. Depending on context it can also mean refining or screening.

How do you pronounce scagadh in Irish?

Scagadh is said like “SKAH-guh” (IPA /ˈsˠkaɡə/).

Does scagadh have a plural?

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

Does scagadh have more than one meaning?

Yes. Scagadh can mean filtering, refining or screening, depending on context; the first is the most common.

What is the difference between scagadh and scagaire?

Scagadh is the act of filtering, while scagaire is the filter itself, the device that does it.

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